640739502

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{210631}}^1$

素因数の和:210665

約数の個数: 36

約数和(自身を含む): 1503280584

約数和(自身を除く): 862541082

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 169, 234, 338, 507, 1014, 1521, 3042, 210631, 421262, 631893, 1263786, 1895679, 2738203, 3791358, 5476406, 8214609, 16429218, 24643827, 35596639, 49287654, 71193278, 106789917, 213579834, 320369751, 640739502]

約数ペア:

[(1, 640739502), (2, 320369751), (3, 213579834), (6, 106789917), (9, 71193278), (13, 49287654), (18, 35596639), (26, 24643827), (39, 16429218), (78, 8214609), (117, 5476406), (169, 3791358), (234, 2738203), (338, 1895679), (507, 1263786), (1014, 631893), (1521, 421262), (3042, 210631)]