28906980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{25357}}^1$

素因数の和:25388

約数の個数: 48

約数和(自身を含む): 85202880

約数和(自身を除く): 56295900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 25357, 50714, 76071, 101428, 126785, 152142, 253570, 304284, 380355, 481783, 507140, 760710, 963566, 1445349, 1521420, 1927132, 2408915, 2890698, 4817830, 5781396, 7226745, 9635660, 14453490, 28906980]

約数ペア:

[(1, 28906980), (2, 14453490), (3, 9635660), (4, 7226745), (5, 5781396), (6, 4817830), (10, 2890698), (12, 2408915), (15, 1927132), (19, 1521420), (20, 1445349), (30, 963566), (38, 760710), (57, 507140), (60, 481783), (76, 380355), (95, 304284), (114, 253570), (190, 152142), (228, 126785), (285, 101428), (380, 76071), (570, 50714), (1140, 25357)]