74927840

素因数分解:

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

素因数の和:221

約数の個数: 144

約数和(自身を含む): 204201648

約数和(自身を除く): 129273808

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 160, 163, 169, 170, 208, 221, 260, 272, 326, 338, 340, 416, 442, 520, 544, 652, 676, 680, 815, 845, 884, 1040, 1105, 1304, 1352, 1360, 1630, 1690, 1768, 2080, 2119, 2210, 2608, 2704, 2720, 2771, 2873, 3260, 3380, 3536, 4238, 4420, 5216, 5408, 5542, 5746, 6520, 6760, 7072, 8476, 8840, 10595, 11084, 11492, 13040, 13520, 13855, 14365, 16952, 17680, 21190, 22168, 22984, 26080, 27040, 27547, 27710, 28730, 33904, 35360, 36023, 42380, 44336, 45968, 55094, 55420, 57460, 67808, 72046, 84760, 88672, 91936, 110188, 110840, 114920, 137735, 144092, 169520, 180115, 220376, 221680, 229840, 275470, 288184, 339040, 360230, 440752, 443360, 459680, 468299, 550940, 576368, 720460, 881504, 936598, 1101880, 1152736, 1440920, 1873196, 2203760, 2341495, 2881840, 3746392, 4407520, 4682990, 5763680, 7492784, 9365980, 14985568, 18731960, 37463920, 74927840]

約数ペア:

[(1, 74927840), (2, 37463920), (4, 18731960), (5, 14985568), (8, 9365980), (10, 7492784), (13, 5763680), (16, 4682990), (17, 4407520), (20, 3746392), (26, 2881840), (32, 2341495), (34, 2203760), (40, 1873196), (52, 1440920), (65, 1152736), (68, 1101880), (80, 936598), (85, 881504), (104, 720460), (130, 576368), (136, 550940), (160, 468299), (163, 459680), (169, 443360), (170, 440752), (208, 360230), (221, 339040), (260, 288184), (272, 275470), (326, 229840), (338, 221680), (340, 220376), (416, 180115), (442, 169520), (520, 144092), (544, 137735), (652, 114920), (676, 110840), (680, 110188), (815, 91936), (845, 88672), (884, 84760), (1040, 72046), (1105, 67808), (1304, 57460), (1352, 55420), (1360, 55094), (1630, 45968), (1690, 44336), (1768, 42380), (2080, 36023), (2119, 35360), (2210, 33904), (2608, 28730), (2704, 27710), (2720, 27547), (2771, 27040), (2873, 26080), (3260, 22984), (3380, 22168), (3536, 21190), (4238, 17680), (4420, 16952), (5216, 14365), (5408, 13855), (5542, 13520), (5746, 13040), (6520, 11492), (6760, 11084), (7072, 10595), (8476, 8840)]