20201393420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1499}}^1\times {\mathrm{3049}}^1$

素因数の和:4587

約数の個数: 96

約数和(自身を含む): 48421800000

約数和(自身を除く): 28220406580

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 1499, 2210, 2998, 3049, 4420, 5996, 6098, 7495, 12196, 14990, 15245, 19487, 25483, 29980, 30490, 38974, 39637, 50966, 51833, 60980, 77948, 79274, 97435, 101932, 103666, 127415, 158548, 194870, 198185, 207332, 254830, 259165, 331279, 389740, 396370, 509660, 518330, 662558, 673829, 792740, 1036660, 1325116, 1347658, 1656395, 2695316, 3312790, 3369145, 4570451, 6625580, 6738290, 9140902, 13476580, 18281804, 22852255, 45704510, 59415863, 77697667, 91409020, 118831726, 155395334, 237663452, 297079315, 310790668, 388488335, 594158630, 776976670, 1010069671, 1188317260, 1553953340, 2020139342, 4040278684, 5050348355, 10100696710, 20201393420]

約数ペア:

[(1, 20201393420), (2, 10100696710), (4, 5050348355), (5, 4040278684), (10, 2020139342), (13, 1553953340), (17, 1188317260), (20, 1010069671), (26, 776976670), (34, 594158630), (52, 388488335), (65, 310790668), (68, 297079315), (85, 237663452), (130, 155395334), (170, 118831726), (221, 91409020), (260, 77697667), (340, 59415863), (442, 45704510), (884, 22852255), (1105, 18281804), (1499, 13476580), (2210, 9140902), (2998, 6738290), (3049, 6625580), (4420, 4570451), (5996, 3369145), (6098, 3312790), (7495, 2695316), (12196, 1656395), (14990, 1347658), (15245, 1325116), (19487, 1036660), (25483, 792740), (29980, 673829), (30490, 662558), (38974, 518330), (39637, 509660), (50966, 396370), (51833, 389740), (60980, 331279), (77948, 259165), (79274, 254830), (97435, 207332), (101932, 198185), (103666, 194870), (127415, 158548)]