28541520

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{809}}^1$

素因数の和:842

約数の個数: 180

約数和(自身を含む): 111639060

約数和(自身を除く): 83097540

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 809, 840, 882, 980, 1008, 1176, 1260, 1470, 1618, 1680, 1764, 1960, 2205, 2352, 2427, 2520, 2940, 3236, 3528, 3920, 4045, 4410, 4854, 5040, 5663, 5880, 6472, 7056, 7281, 8090, 8820, 9708, 11326, 11760, 12135, 12944, 14562, 16180, 16989, 17640, 19416, 22652, 24270, 28315, 29124, 32360, 33978, 35280, 36405, 38832, 39641, 45304, 48540, 50967, 56630, 58248, 64720, 67956, 72810, 79282, 84945, 90608, 97080, 101934, 113260, 116496, 118923, 135912, 145620, 158564, 169890, 194160, 198205, 203868, 226520, 237846, 254835, 271824, 291240, 317128, 339780, 356769, 396410, 407736, 453040, 475692, 509670, 582480, 594615, 634256, 679560, 713538, 792820, 815472, 951384, 1019340, 1189230, 1359120, 1427076, 1585640, 1783845, 1902768, 2038680, 2378460, 2854152, 3171280, 3567690, 4077360, 4756920, 5708304, 7135380, 9513840, 14270760, 28541520]

約数ペア:

[(1, 28541520), (2, 14270760), (3, 9513840), (4, 7135380), (5, 5708304), (6, 4756920), (7, 4077360), (8, 3567690), (9, 3171280), (10, 2854152), (12, 2378460), (14, 2038680), (15, 1902768), (16, 1783845), (18, 1585640), (20, 1427076), (21, 1359120), (24, 1189230), (28, 1019340), (30, 951384), (35, 815472), (36, 792820), (40, 713538), (42, 679560), (45, 634256), (48, 594615), (49, 582480), (56, 509670), (60, 475692), (63, 453040), (70, 407736), (72, 396410), (80, 356769), (84, 339780), (90, 317128), (98, 291240), (105, 271824), (112, 254835), (120, 237846), (126, 226520), (140, 203868), (144, 198205), (147, 194160), (168, 169890), (180, 158564), (196, 145620), (210, 135912), (240, 118923), (245, 116496), (252, 113260), (280, 101934), (294, 97080), (315, 90608), (336, 84945), (360, 79282), (392, 72810), (420, 67956), (441, 64720), (490, 58248), (504, 56630), (560, 50967), (588, 48540), (630, 45304), (720, 39641), (735, 38832), (784, 36405), (809, 35280), (840, 33978), (882, 32360), (980, 29124), (1008, 28315), (1176, 24270), (1260, 22652), (1470, 19416), (1618, 17640), (1680, 16989), (1764, 16180), (1960, 14562), (2205, 12944), (2352, 12135), (2427, 11760), (2520, 11326), (2940, 9708), (3236, 8820), (3528, 8090), (3920, 7281), (4045, 7056), (4410, 6472), (4854, 5880), (5040, 5663)]