1640597940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{977}}^1$

素因数の和:1502

約数の個数: 144

約数和(自身を含む): 5254441920

約数和(自身を除く): 3613843980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 491, 570, 684, 855, 977, 982, 1140, 1473, 1710, 1954, 1964, 2455, 2931, 2946, 3420, 3908, 4419, 4885, 4910, 5862, 5892, 7365, 8793, 8838, 9329, 9770, 9820, 11724, 14655, 14730, 17586, 17676, 18563, 18658, 19540, 22095, 27987, 29310, 29460, 35172, 37126, 37316, 43965, 44190, 46645, 55689, 55974, 58620, 74252, 83961, 87930, 88380, 92815, 93290, 111378, 111948, 139935, 167067, 167922, 175860, 185630, 186580, 222756, 278445, 279870, 334134, 335844, 371260, 419805, 479707, 556890, 559740, 668268, 835335, 839610, 959414, 1113780, 1439121, 1670670, 1679220, 1918828, 2398535, 2878242, 3341340, 4317363, 4797070, 5756484, 7195605, 8634726, 9114433, 9594140, 14391210, 17269452, 18228866, 21586815, 27343299, 28782420, 36457732, 43173630, 45572165, 54686598, 82029897, 86347260, 91144330, 109373196, 136716495, 164059794, 182288660, 273432990, 328119588, 410149485, 546865980, 820298970, 1640597940]

約数ペア:

[(1, 1640597940), (2, 820298970), (3, 546865980), (4, 410149485), (5, 328119588), (6, 273432990), (9, 182288660), (10, 164059794), (12, 136716495), (15, 109373196), (18, 91144330), (19, 86347260), (20, 82029897), (30, 54686598), (36, 45572165), (38, 43173630), (45, 36457732), (57, 28782420), (60, 27343299), (76, 21586815), (90, 18228866), (95, 17269452), (114, 14391210), (171, 9594140), (180, 9114433), (190, 8634726), (228, 7195605), (285, 5756484), (342, 4797070), (380, 4317363), (491, 3341340), (570, 2878242), (684, 2398535), (855, 1918828), (977, 1679220), (982, 1670670), (1140, 1439121), (1473, 1113780), (1710, 959414), (1954, 839610), (1964, 835335), (2455, 668268), (2931, 559740), (2946, 556890), (3420, 479707), (3908, 419805), (4419, 371260), (4885, 335844), (4910, 334134), (5862, 279870), (5892, 278445), (7365, 222756), (8793, 186580), (8838, 185630), (9329, 175860), (9770, 167922), (9820, 167067), (11724, 139935), (14655, 111948), (14730, 111378), (17586, 93290), (17676, 92815), (18563, 88380), (18658, 87930), (19540, 83961), (22095, 74252), (27987, 58620), (29310, 55974), (29460, 55689), (35172, 46645), (37126, 44190), (37316, 43965)]