71980740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1619}}^1$

素因数の和:1666

約数の個数: 144

約数和(自身を含む): 247665600

約数和(自身を除く): 175684860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 36, 38, 39, 45, 52, 57, 60, 65, 76, 78, 90, 95, 114, 117, 130, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 342, 380, 390, 468, 494, 570, 585, 684, 741, 780, 855, 988, 1140, 1170, 1235, 1482, 1619, 1710, 2223, 2340, 2470, 2964, 3238, 3420, 3705, 4446, 4857, 4940, 6476, 7410, 8095, 8892, 9714, 11115, 14571, 14820, 16190, 19428, 21047, 22230, 24285, 29142, 30761, 32380, 42094, 44460, 48570, 58284, 61522, 63141, 72855, 84188, 92283, 97140, 105235, 123044, 126282, 145710, 153805, 184566, 189423, 210470, 252564, 276849, 291420, 307610, 315705, 369132, 378846, 399893, 420940, 461415, 553698, 615220, 631410, 757692, 799786, 922830, 947115, 1107396, 1199679, 1262820, 1384245, 1599572, 1845660, 1894230, 1999465, 2399358, 2768490, 3599037, 3788460, 3998930, 4798716, 5536980, 5998395, 7198074, 7997860, 11996790, 14396148, 17995185, 23993580, 35990370, 71980740]

約数ペア:

[(1, 71980740), (2, 35990370), (3, 23993580), (4, 17995185), (5, 14396148), (6, 11996790), (9, 7997860), (10, 7198074), (12, 5998395), (13, 5536980), (15, 4798716), (18, 3998930), (19, 3788460), (20, 3599037), (26, 2768490), (30, 2399358), (36, 1999465), (38, 1894230), (39, 1845660), (45, 1599572), (52, 1384245), (57, 1262820), (60, 1199679), (65, 1107396), (76, 947115), (78, 922830), (90, 799786), (95, 757692), (114, 631410), (117, 615220), (130, 553698), (156, 461415), (171, 420940), (180, 399893), (190, 378846), (195, 369132), (228, 315705), (234, 307610), (247, 291420), (260, 276849), (285, 252564), (342, 210470), (380, 189423), (390, 184566), (468, 153805), (494, 145710), (570, 126282), (585, 123044), (684, 105235), (741, 97140), (780, 92283), (855, 84188), (988, 72855), (1140, 63141), (1170, 61522), (1235, 58284), (1482, 48570), (1619, 44460), (1710, 42094), (2223, 32380), (2340, 30761), (2470, 29142), (2964, 24285), (3238, 22230), (3420, 21047), (3705, 19428), (4446, 16190), (4857, 14820), (4940, 14571), (6476, 11115), (7410, 9714), (8095, 8892)]