20346690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1$

素因数の和:316

約数の個数: 128

約数和(自身を含む): 62415360

約数和(自身を除く): 42068670

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 29, 30, 35, 39, 42, 58, 65, 70, 78, 87, 91, 105, 130, 145, 174, 182, 195, 203, 210, 257, 273, 290, 377, 390, 406, 435, 455, 514, 546, 609, 754, 771, 870, 910, 1015, 1131, 1218, 1285, 1365, 1542, 1799, 1885, 2030, 2262, 2570, 2639, 2730, 3045, 3341, 3598, 3770, 3855, 5278, 5397, 5655, 6090, 6682, 7453, 7710, 7917, 8995, 10023, 10794, 11310, 13195, 14906, 15834, 16705, 17990, 20046, 22359, 23387, 26390, 26985, 33410, 37265, 39585, 44718, 46774, 50115, 52171, 53970, 70161, 74530, 79170, 96889, 100230, 104342, 111795, 116935, 140322, 156513, 193778, 223590, 233870, 260855, 290667, 313026, 350805, 484445, 521710, 581334, 678223, 701610, 782565, 968890, 1356446, 1453335, 1565130, 2034669, 2906670, 3391115, 4069338, 6782230, 10173345, 20346690]

約数ペア:

[(1, 20346690), (2, 10173345), (3, 6782230), (5, 4069338), (6, 3391115), (7, 2906670), (10, 2034669), (13, 1565130), (14, 1453335), (15, 1356446), (21, 968890), (26, 782565), (29, 701610), (30, 678223), (35, 581334), (39, 521710), (42, 484445), (58, 350805), (65, 313026), (70, 290667), (78, 260855), (87, 233870), (91, 223590), (105, 193778), (130, 156513), (145, 140322), (174, 116935), (182, 111795), (195, 104342), (203, 100230), (210, 96889), (257, 79170), (273, 74530), (290, 70161), (377, 53970), (390, 52171), (406, 50115), (435, 46774), (455, 44718), (514, 39585), (546, 37265), (609, 33410), (754, 26985), (771, 26390), (870, 23387), (910, 22359), (1015, 20046), (1131, 17990), (1218, 16705), (1285, 15834), (1365, 14906), (1542, 13195), (1799, 11310), (1885, 10794), (2030, 10023), (2262, 8995), (2570, 7917), (2639, 7710), (2730, 7453), (3045, 6682), (3341, 6090), (3598, 5655), (3770, 5397), (3855, 5278)]