77420421

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{19}}^2\times {\mathrm{47}}^1$

素因数の和:120

約数の個数: 72

約数和(自身を含む): 133868160

約数和(自身を除く): 56447739

約数列:

[1, 3, 9, 13, 19, 27, 39, 47, 57, 117, 141, 169, 171, 247, 351, 361, 423, 507, 513, 611, 741, 893, 1083, 1269, 1521, 1833, 2223, 2679, 3211, 3249, 4563, 4693, 5499, 6669, 7943, 8037, 9633, 9747, 11609, 14079, 16497, 16967, 23829, 24111, 28899, 34827, 42237, 50901, 61009, 71487, 86697, 104481, 126711, 150917, 152703, 183027, 214461, 220571, 313443, 452751, 458109, 549081, 661713, 1358253, 1647243, 1985139, 2867423, 4074759, 5955417, 8602269, 25806807, 77420421]

約数ペア:

[(1, 77420421), (3, 25806807), (9, 8602269), (13, 5955417), (19, 4074759), (27, 2867423), (39, 1985139), (47, 1647243), (57, 1358253), (117, 661713), (141, 549081), (169, 458109), (171, 452751), (247, 313443), (351, 220571), (361, 214461), (423, 183027), (507, 152703), (513, 150917), (611, 126711), (741, 104481), (893, 86697), (1083, 71487), (1269, 61009), (1521, 50901), (1833, 42237), (2223, 34827), (2679, 28899), (3211, 24111), (3249, 23829), (4563, 16967), (4693, 16497), (5499, 14079), (6669, 11609), (7943, 9747), (8037, 9633)]