71207820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1$

素因数の和:524

約数の個数: 144

約数和(自身を含む): 232727040

約数和(自身を除く): 161519220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 47, 57, 60, 76, 90, 94, 95, 114, 141, 171, 180, 188, 190, 228, 235, 282, 285, 342, 380, 423, 443, 470, 564, 570, 684, 705, 846, 855, 886, 893, 940, 1140, 1329, 1410, 1692, 1710, 1772, 1786, 2115, 2215, 2658, 2679, 2820, 3420, 3572, 3987, 4230, 4430, 4465, 5316, 5358, 6645, 7974, 8037, 8417, 8460, 8860, 8930, 10716, 13290, 13395, 15948, 16074, 16834, 17860, 19935, 20821, 25251, 26580, 26790, 32148, 33668, 39870, 40185, 41642, 42085, 50502, 53580, 62463, 75753, 79740, 80370, 83284, 84170, 101004, 104105, 124926, 126255, 151506, 160740, 168340, 187389, 208210, 249852, 252510, 303012, 312315, 374778, 378765, 395599, 416420, 505020, 624630, 749556, 757530, 791198, 936945, 1186797, 1249260, 1515060, 1582396, 1873890, 1977995, 2373594, 3560391, 3747780, 3955990, 4747188, 5933985, 7120782, 7911980, 11867970, 14241564, 17801955, 23735940, 35603910, 71207820]

約数ペア:

[(1, 71207820), (2, 35603910), (3, 23735940), (4, 17801955), (5, 14241564), (6, 11867970), (9, 7911980), (10, 7120782), (12, 5933985), (15, 4747188), (18, 3955990), (19, 3747780), (20, 3560391), (30, 2373594), (36, 1977995), (38, 1873890), (45, 1582396), (47, 1515060), (57, 1249260), (60, 1186797), (76, 936945), (90, 791198), (94, 757530), (95, 749556), (114, 624630), (141, 505020), (171, 416420), (180, 395599), (188, 378765), (190, 374778), (228, 312315), (235, 303012), (282, 252510), (285, 249852), (342, 208210), (380, 187389), (423, 168340), (443, 160740), (470, 151506), (564, 126255), (570, 124926), (684, 104105), (705, 101004), (846, 84170), (855, 83284), (886, 80370), (893, 79740), (940, 75753), (1140, 62463), (1329, 53580), (1410, 50502), (1692, 42085), (1710, 41642), (1772, 40185), (1786, 39870), (2115, 33668), (2215, 32148), (2658, 26790), (2679, 26580), (2820, 25251), (3420, 20821), (3572, 19935), (3987, 17860), (4230, 16834), (4430, 16074), (4465, 15948), (5316, 13395), (5358, 13290), (6645, 10716), (7974, 8930), (8037, 8860), (8417, 8460)]