20457300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 64648640

約数和(自身を除く): 44191340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 25, 30, 37, 38, 50, 57, 60, 74, 75, 76, 95, 97, 100, 111, 114, 148, 150, 185, 190, 194, 222, 228, 285, 291, 300, 370, 380, 388, 444, 475, 485, 555, 570, 582, 703, 740, 925, 950, 970, 1110, 1140, 1164, 1406, 1425, 1455, 1843, 1850, 1900, 1940, 2109, 2220, 2425, 2775, 2812, 2850, 2910, 3515, 3589, 3686, 3700, 4218, 4850, 5529, 5550, 5700, 5820, 7030, 7178, 7275, 7372, 8436, 9215, 9700, 10545, 10767, 11058, 11100, 14060, 14356, 14550, 17575, 17945, 18430, 21090, 21534, 22116, 27645, 29100, 35150, 35890, 36860, 42180, 43068, 46075, 52725, 53835, 55290, 68191, 70300, 71780, 89725, 92150, 105450, 107670, 110580, 136382, 138225, 179450, 184300, 204573, 210900, 215340, 269175, 272764, 276450, 340955, 358900, 409146, 538350, 552900, 681910, 818292, 1022865, 1076700, 1363820, 1704775, 2045730, 3409550, 4091460, 5114325, 6819100, 10228650, 20457300]

約数ペア:

[(1, 20457300), (2, 10228650), (3, 6819100), (4, 5114325), (5, 4091460), (6, 3409550), (10, 2045730), (12, 1704775), (15, 1363820), (19, 1076700), (20, 1022865), (25, 818292), (30, 681910), (37, 552900), (38, 538350), (50, 409146), (57, 358900), (60, 340955), (74, 276450), (75, 272764), (76, 269175), (95, 215340), (97, 210900), (100, 204573), (111, 184300), (114, 179450), (148, 138225), (150, 136382), (185, 110580), (190, 107670), (194, 105450), (222, 92150), (228, 89725), (285, 71780), (291, 70300), (300, 68191), (370, 55290), (380, 53835), (388, 52725), (444, 46075), (475, 43068), (485, 42180), (555, 36860), (570, 35890), (582, 35150), (703, 29100), (740, 27645), (925, 22116), (950, 21534), (970, 21090), (1110, 18430), (1140, 17945), (1164, 17575), (1406, 14550), (1425, 14356), (1455, 14060), (1843, 11100), (1850, 11058), (1900, 10767), (1940, 10545), (2109, 9700), (2220, 9215), (2425, 8436), (2775, 7372), (2812, 7275), (2850, 7178), (2910, 7030), (3515, 5820), (3589, 5700), (3686, 5550), (3700, 5529), (4218, 4850)]