171858420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1621}}^1$

素因数の和:1686

約数の個数: 144

約数和(自身を含む): 566791680

約数和(自身を除く): 394933260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 31, 36, 38, 45, 57, 60, 62, 76, 90, 93, 95, 114, 124, 155, 171, 180, 186, 190, 228, 279, 285, 310, 342, 372, 380, 465, 558, 570, 589, 620, 684, 855, 930, 1116, 1140, 1178, 1395, 1621, 1710, 1767, 1860, 2356, 2790, 2945, 3242, 3420, 3534, 4863, 5301, 5580, 5890, 6484, 7068, 8105, 8835, 9726, 10602, 11780, 14589, 16210, 17670, 19452, 21204, 24315, 26505, 29178, 30799, 32420, 35340, 48630, 50251, 53010, 58356, 61598, 72945, 92397, 97260, 100502, 106020, 123196, 145890, 150753, 153995, 184794, 201004, 251255, 277191, 291780, 301506, 307990, 369588, 452259, 461985, 502510, 554382, 603012, 615980, 753765, 904518, 923970, 954769, 1005020, 1108764, 1385955, 1507530, 1809036, 1847940, 1909538, 2261295, 2771910, 2864307, 3015060, 3819076, 4522590, 4773845, 5543820, 5728614, 8592921, 9045180, 9547690, 11457228, 14321535, 17185842, 19095380, 28643070, 34371684, 42964605, 57286140, 85929210, 171858420]

約数ペア:

[(1, 171858420), (2, 85929210), (3, 57286140), (4, 42964605), (5, 34371684), (6, 28643070), (9, 19095380), (10, 17185842), (12, 14321535), (15, 11457228), (18, 9547690), (19, 9045180), (20, 8592921), (30, 5728614), (31, 5543820), (36, 4773845), (38, 4522590), (45, 3819076), (57, 3015060), (60, 2864307), (62, 2771910), (76, 2261295), (90, 1909538), (93, 1847940), (95, 1809036), (114, 1507530), (124, 1385955), (155, 1108764), (171, 1005020), (180, 954769), (186, 923970), (190, 904518), (228, 753765), (279, 615980), (285, 603012), (310, 554382), (342, 502510), (372, 461985), (380, 452259), (465, 369588), (558, 307990), (570, 301506), (589, 291780), (620, 277191), (684, 251255), (855, 201004), (930, 184794), (1116, 153995), (1140, 150753), (1178, 145890), (1395, 123196), (1621, 106020), (1710, 100502), (1767, 97260), (1860, 92397), (2356, 72945), (2790, 61598), (2945, 58356), (3242, 53010), (3420, 50251), (3534, 48630), (4863, 35340), (5301, 32420), (5580, 30799), (5890, 29178), (6484, 26505), (7068, 24315), (8105, 21204), (8835, 19452), (9726, 17670), (10602, 16210), (11780, 14589)]