72821015

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 96460800

約数和(自身を除く): 23639785

約数列:

[1, 5, 19, 31, 79, 95, 155, 313, 395, 589, 1501, 1565, 2449, 2945, 5947, 7505, 9703, 12245, 24727, 29735, 46531, 48515, 123635, 184357, 232655, 469813, 766537, 921785, 2349065, 3832685, 14564203, 72821015]

約数ペア:

[(1, 72821015), (5, 14564203), (19, 3832685), (31, 2349065), (79, 921785), (95, 766537), (155, 469813), (313, 232655), (395, 184357), (589, 123635), (1501, 48515), (1565, 46531), (2449, 29735), (2945, 24727), (5947, 12245), (7505, 9703)]