20178561390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{728731}}^1$

素因数の和:728825

約数の個数: 64

約数和(自身を含む): 52888453632

約数和(自身を除く): 32709892242

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 71, 78, 130, 142, 195, 213, 355, 390, 426, 710, 923, 1065, 1846, 2130, 2769, 4615, 5538, 9230, 13845, 27690, 728731, 1457462, 2186193, 3643655, 4372386, 7287310, 9473503, 10930965, 18947006, 21861930, 28420509, 47367515, 51739901, 56841018, 94735030, 103479802, 142102545, 155219703, 258699505, 284205090, 310439406, 517399010, 672618713, 776098515, 1345237426, 1552197030, 2017856139, 3363093565, 4035712278, 6726187130, 10089280695, 20178561390]

約数ペア:

[(1, 20178561390), (2, 10089280695), (3, 6726187130), (5, 4035712278), (6, 3363093565), (10, 2017856139), (13, 1552197030), (15, 1345237426), (26, 776098515), (30, 672618713), (39, 517399010), (65, 310439406), (71, 284205090), (78, 258699505), (130, 155219703), (142, 142102545), (195, 103479802), (213, 94735030), (355, 56841018), (390, 51739901), (426, 47367515), (710, 28420509), (923, 21861930), (1065, 18947006), (1846, 10930965), (2130, 9473503), (2769, 7287310), (4615, 4372386), (5538, 3643655), (9230, 2186193), (13845, 1457462), (27690, 728731)]