18731960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 48619440

約数和(自身を除く): 29887480

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 163, 169, 170, 221, 260, 326, 338, 340, 442, 520, 652, 676, 680, 815, 845, 884, 1105, 1304, 1352, 1630, 1690, 1768, 2119, 2210, 2771, 2873, 3260, 3380, 4238, 4420, 5542, 5746, 6520, 6760, 8476, 8840, 10595, 11084, 11492, 13855, 14365, 16952, 21190, 22168, 22984, 27547, 27710, 28730, 36023, 42380, 55094, 55420, 57460, 72046, 84760, 110188, 110840, 114920, 137735, 144092, 180115, 220376, 275470, 288184, 360230, 468299, 550940, 720460, 936598, 1101880, 1440920, 1873196, 2341495, 3746392, 4682990, 9365980, 18731960]

約数ペア:

[(1, 18731960), (2, 9365980), (4, 4682990), (5, 3746392), (8, 2341495), (10, 1873196), (13, 1440920), (17, 1101880), (20, 936598), (26, 720460), (34, 550940), (40, 468299), (52, 360230), (65, 288184), (68, 275470), (85, 220376), (104, 180115), (130, 144092), (136, 137735), (163, 114920), (169, 110840), (170, 110188), (221, 84760), (260, 72046), (326, 57460), (338, 55420), (340, 55094), (442, 42380), (520, 36023), (652, 28730), (676, 27710), (680, 27547), (815, 22984), (845, 22168), (884, 21190), (1105, 16952), (1304, 14365), (1352, 13855), (1630, 11492), (1690, 11084), (1768, 10595), (2119, 8840), (2210, 8476), (2771, 6760), (2873, 6520), (3260, 5746), (3380, 5542), (4238, 4420)]