645986700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1021}}^1$

素因数の和:1097

約数の個数: 216

約数和(自身を含む): 2191127120

約数和(自身を除く): 1545140420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 25, 30, 36, 37, 38, 45, 50, 57, 60, 74, 75, 76, 90, 95, 100, 111, 114, 148, 150, 171, 180, 185, 190, 222, 225, 228, 285, 300, 333, 342, 370, 380, 444, 450, 475, 555, 570, 666, 684, 703, 740, 855, 900, 925, 950, 1021, 1110, 1140, 1332, 1406, 1425, 1665, 1710, 1850, 1900, 2042, 2109, 2220, 2775, 2812, 2850, 3063, 3330, 3420, 3515, 3700, 4084, 4218, 4275, 5105, 5550, 5700, 6126, 6327, 6660, 7030, 8325, 8436, 8550, 9189, 10210, 10545, 11100, 12252, 12654, 14060, 15315, 16650, 17100, 17575, 18378, 19399, 20420, 21090, 25308, 25525, 30630, 31635, 33300, 35150, 36756, 37777, 38798, 42180, 45945, 51050, 52725, 58197, 61260, 63270, 70300, 75554, 76575, 77596, 91890, 96995, 102100, 105450, 113331, 116394, 126540, 151108, 153150, 158175, 174591, 183780, 188885, 193990, 210900, 226662, 229725, 232788, 290985, 306300, 316350, 339993, 349182, 377770, 387980, 453324, 459450, 484975, 566655, 581970, 632700, 679986, 698364, 717763, 755540, 872955, 918900, 944425, 969950, 1133310, 1163940, 1359972, 1435526, 1454925, 1699965, 1745910, 1888850, 1939900, 2153289, 2266620, 2833275, 2871052, 2909850, 3399930, 3491820, 3588815, 3777700, 4306578, 4364775, 5666550, 5819700, 6459867, 6799860, 7177630, 8499825, 8613156, 8729550, 10766445, 11333100, 12919734, 14355260, 16999650, 17459100, 17944075, 21532890, 25839468, 32299335, 33999300, 35888150, 43065780, 53832225, 64598670, 71776300, 107664450, 129197340, 161496675, 215328900, 322993350, 645986700]

約数ペア:

[(1, 645986700), (2, 322993350), (3, 215328900), (4, 161496675), (5, 129197340), (6, 107664450), (9, 71776300), (10, 64598670), (12, 53832225), (15, 43065780), (18, 35888150), (19, 33999300), (20, 32299335), (25, 25839468), (30, 21532890), (36, 17944075), (37, 17459100), (38, 16999650), (45, 14355260), (50, 12919734), (57, 11333100), (60, 10766445), (74, 8729550), (75, 8613156), (76, 8499825), (90, 7177630), (95, 6799860), (100, 6459867), (111, 5819700), (114, 5666550), (148, 4364775), (150, 4306578), (171, 3777700), (180, 3588815), (185, 3491820), (190, 3399930), (222, 2909850), (225, 2871052), (228, 2833275), (285, 2266620), (300, 2153289), (333, 1939900), (342, 1888850), (370, 1745910), (380, 1699965), (444, 1454925), (450, 1435526), (475, 1359972), (555, 1163940), (570, 1133310), (666, 969950), (684, 944425), (703, 918900), (740, 872955), (855, 755540), (900, 717763), (925, 698364), (950, 679986), (1021, 632700), (1110, 581970), (1140, 566655), (1332, 484975), (1406, 459450), (1425, 453324), (1665, 387980), (1710, 377770), (1850, 349182), (1900, 339993), (2042, 316350), (2109, 306300), (2220, 290985), (2775, 232788), (2812, 229725), (2850, 226662), (3063, 210900), (3330, 193990), (3420, 188885), (3515, 183780), (3700, 174591), (4084, 158175), (4218, 153150), (4275, 151108), (5105, 126540), (5550, 116394), (5700, 113331), (6126, 105450), (6327, 102100), (6660, 96995), (7030, 91890), (8325, 77596), (8436, 76575), (8550, 75554), (9189, 70300), (10210, 63270), (10545, 61260), (11100, 58197), (12252, 52725), (12654, 51050), (14060, 45945), (15315, 42180), (16650, 38798), (17100, 37777), (17575, 36756), (18378, 35150), (19399, 33300), (20420, 31635), (21090, 30630), (25308, 25525)]