290661240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7499}}^1$

素因数の和:7549

約数の個数: 128

約数和(自身を含む): 972000000

約数和(自身を除く): 681338760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 19, 20, 24, 30, 34, 38, 40, 51, 57, 60, 68, 76, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 255, 285, 323, 340, 380, 408, 456, 510, 570, 646, 680, 760, 969, 1020, 1140, 1292, 1615, 1938, 2040, 2280, 2584, 3230, 3876, 4845, 6460, 7499, 7752, 9690, 12920, 14998, 19380, 22497, 29996, 37495, 38760, 44994, 59992, 74990, 89988, 112485, 127483, 142481, 149980, 179976, 224970, 254966, 284962, 299960, 382449, 427443, 449940, 509932, 569924, 637415, 712405, 764898, 854886, 899880, 1019864, 1139848, 1274830, 1424810, 1529796, 1709772, 1912245, 2137215, 2422177, 2549660, 2849620, 3059592, 3419544, 3824490, 4274430, 4844354, 5099320, 5699240, 7266531, 7648980, 8548860, 9688708, 12110885, 14533062, 15297960, 17097720, 19377416, 24221770, 29066124, 36332655, 48443540, 58132248, 72665310, 96887080, 145330620, 290661240]

約数ペア:

[(1, 290661240), (2, 145330620), (3, 96887080), (4, 72665310), (5, 58132248), (6, 48443540), (8, 36332655), (10, 29066124), (12, 24221770), (15, 19377416), (17, 17097720), (19, 15297960), (20, 14533062), (24, 12110885), (30, 9688708), (34, 8548860), (38, 7648980), (40, 7266531), (51, 5699240), (57, 5099320), (60, 4844354), (68, 4274430), (76, 3824490), (85, 3419544), (95, 3059592), (102, 2849620), (114, 2549660), (120, 2422177), (136, 2137215), (152, 1912245), (170, 1709772), (190, 1529796), (204, 1424810), (228, 1274830), (255, 1139848), (285, 1019864), (323, 899880), (340, 854886), (380, 764898), (408, 712405), (456, 637415), (510, 569924), (570, 509932), (646, 449940), (680, 427443), (760, 382449), (969, 299960), (1020, 284962), (1140, 254966), (1292, 224970), (1615, 179976), (1938, 149980), (2040, 142481), (2280, 127483), (2584, 112485), (3230, 89988), (3876, 74990), (4845, 59992), (6460, 44994), (7499, 38760), (7752, 37495), (9690, 29996), (12920, 22497), (14998, 19380)]