1820728

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:128

約数の個数: 64

約数和(自身を含む): 4374720

約数和(自身を除く): 2553992

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 41, 52, 56, 61, 82, 91, 104, 122, 164, 182, 244, 287, 328, 364, 427, 488, 533, 574, 728, 793, 854, 1066, 1148, 1586, 1708, 2132, 2296, 2501, 3172, 3416, 3731, 4264, 5002, 5551, 6344, 7462, 10004, 11102, 14924, 17507, 20008, 22204, 29848, 32513, 35014, 44408, 65026, 70028, 130052, 140056, 227591, 260104, 455182, 910364, 1820728]

約数ペア:

[(1, 1820728), (2, 910364), (4, 455182), (7, 260104), (8, 227591), (13, 140056), (14, 130052), (26, 70028), (28, 65026), (41, 44408), (52, 35014), (56, 32513), (61, 29848), (82, 22204), (91, 20008), (104, 17507), (122, 14924), (164, 11102), (182, 10004), (244, 7462), (287, 6344), (328, 5551), (364, 5002), (427, 4264), (488, 3731), (533, 3416), (574, 3172), (728, 2501), (793, 2296), (854, 2132), (1066, 1708), (1148, 1586)]