2605980

素因数分解:

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

素因数の和:295

約数の個数: 72

約数和(自身を含む): 7931952

約数和(自身を除く): 5325972

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 257, 260, 338, 390, 507, 514, 676, 771, 780, 845, 1014, 1028, 1285, 1542, 1690, 2028, 2535, 2570, 3084, 3341, 3380, 3855, 5070, 5140, 6682, 7710, 10023, 10140, 13364, 15420, 16705, 20046, 33410, 40092, 43433, 50115, 66820, 86866, 100230, 130299, 173732, 200460, 217165, 260598, 434330, 521196, 651495, 868660, 1302990, 2605980]

約数ペア:

[(1, 2605980), (2, 1302990), (3, 868660), (4, 651495), (5, 521196), (6, 434330), (10, 260598), (12, 217165), (13, 200460), (15, 173732), (20, 130299), (26, 100230), (30, 86866), (39, 66820), (52, 50115), (60, 43433), (65, 40092), (78, 33410), (130, 20046), (156, 16705), (169, 15420), (195, 13364), (257, 10140), (260, 10023), (338, 7710), (390, 6682), (507, 5140), (514, 5070), (676, 3855), (771, 3380), (780, 3341), (845, 3084), (1014, 2570), (1028, 2535), (1285, 2028), (1542, 1690)]