219090040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6907}}^1$

素因数の和:6992

約数の個数: 64

約数和(自身を含む): 539652960

約数和(自身を除く): 320562920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 305, 488, 520, 610, 793, 1220, 1586, 2440, 3172, 3965, 6344, 6907, 7930, 13814, 15860, 27628, 31720, 34535, 55256, 69070, 89791, 138140, 179582, 276280, 359164, 421327, 448955, 718328, 842654, 897910, 1685308, 1795820, 2106635, 3370616, 3591640, 4213270, 5477251, 8426540, 10954502, 16853080, 21909004, 27386255, 43818008, 54772510, 109545020, 219090040]

約数ペア:

[(1, 219090040), (2, 109545020), (4, 54772510), (5, 43818008), (8, 27386255), (10, 21909004), (13, 16853080), (20, 10954502), (26, 8426540), (40, 5477251), (52, 4213270), (61, 3591640), (65, 3370616), (104, 2106635), (122, 1795820), (130, 1685308), (244, 897910), (260, 842654), (305, 718328), (488, 448955), (520, 421327), (610, 359164), (793, 276280), (1220, 179582), (1586, 138140), (2440, 89791), (3172, 69070), (3965, 55256), (6344, 34535), (6907, 31720), (7930, 27628), (13814, 15860)]