2539160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 6501600

約数和(自身を除く): 3962440

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 257, 260, 380, 494, 514, 520, 760, 988, 1028, 1235, 1285, 1976, 2056, 2470, 2570, 3341, 4883, 4940, 5140, 6682, 9766, 9880, 10280, 13364, 16705, 19532, 24415, 26728, 33410, 39064, 48830, 63479, 66820, 97660, 126958, 133640, 195320, 253916, 317395, 507832, 634790, 1269580, 2539160]

約数ペア:

[(1, 2539160), (2, 1269580), (4, 634790), (5, 507832), (8, 317395), (10, 253916), (13, 195320), (19, 133640), (20, 126958), (26, 97660), (38, 66820), (40, 63479), (52, 48830), (65, 39064), (76, 33410), (95, 26728), (104, 24415), (130, 19532), (152, 16705), (190, 13364), (247, 10280), (257, 9880), (260, 9766), (380, 6682), (494, 5140), (514, 4940), (520, 4883), (760, 3341), (988, 2570), (1028, 2470), (1235, 2056), (1285, 1976)]