390764520

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1999}}^1$

素因数の和:2200

約数の個数: 128

約数和(自身を含む): 1310400000

約数和(自身を除く): 919635480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 181, 216, 270, 360, 362, 540, 543, 724, 905, 1080, 1086, 1448, 1629, 1810, 1999, 2172, 2715, 3258, 3620, 3998, 4344, 4887, 5430, 5997, 6516, 7240, 7996, 8145, 9774, 9995, 10860, 11994, 13032, 15992, 16290, 17991, 19548, 19990, 21720, 23988, 24435, 29985, 32580, 35982, 39096, 39980, 47976, 48870, 53973, 59970, 65160, 71964, 79960, 89955, 97740, 107946, 119940, 143928, 179910, 195480, 215892, 239880, 269865, 359820, 361819, 431784, 539730, 719640, 723638, 1079460, 1085457, 1447276, 1809095, 2158920, 2170914, 2894552, 3256371, 3618190, 4341828, 5427285, 6512742, 7236380, 8683656, 9769113, 10854570, 13025484, 14472760, 16281855, 19538226, 21709140, 26050968, 32563710, 39076452, 43418280, 48845565, 65127420, 78152904, 97691130, 130254840, 195382260, 390764520]

約数ペア:

[(1, 390764520), (2, 195382260), (3, 130254840), (4, 97691130), (5, 78152904), (6, 65127420), (8, 48845565), (9, 43418280), (10, 39076452), (12, 32563710), (15, 26050968), (18, 21709140), (20, 19538226), (24, 16281855), (27, 14472760), (30, 13025484), (36, 10854570), (40, 9769113), (45, 8683656), (54, 7236380), (60, 6512742), (72, 5427285), (90, 4341828), (108, 3618190), (120, 3256371), (135, 2894552), (180, 2170914), (181, 2158920), (216, 1809095), (270, 1447276), (360, 1085457), (362, 1079460), (540, 723638), (543, 719640), (724, 539730), (905, 431784), (1080, 361819), (1086, 359820), (1448, 269865), (1629, 239880), (1810, 215892), (1999, 195480), (2172, 179910), (2715, 143928), (3258, 119940), (3620, 107946), (3998, 97740), (4344, 89955), (4887, 79960), (5430, 71964), (5997, 65160), (6516, 59970), (7240, 53973), (7996, 48870), (8145, 47976), (9774, 39980), (9995, 39096), (10860, 35982), (11994, 32580), (13032, 29985), (15992, 24435), (16290, 23988), (17991, 21720), (19548, 19990)]