231051990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{659}}^1$

素因数の和:742

約数の個数: 128

約数和(自身を含む): 638668800

約数和(自身を除く): 407616810

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 29, 30, 31, 39, 58, 62, 65, 78, 87, 93, 130, 145, 155, 174, 186, 195, 290, 310, 377, 390, 403, 435, 465, 659, 754, 806, 870, 899, 930, 1131, 1209, 1318, 1798, 1885, 1977, 2015, 2262, 2418, 2697, 3295, 3770, 3954, 4030, 4495, 5394, 5655, 6045, 6590, 8567, 8990, 9885, 11310, 11687, 12090, 13485, 17134, 19111, 19770, 20429, 23374, 25701, 26970, 35061, 38222, 40858, 42835, 51402, 57333, 58435, 61287, 70122, 85670, 95555, 102145, 114666, 116870, 122574, 128505, 175305, 191110, 204290, 248443, 257010, 265577, 286665, 306435, 350610, 496886, 531154, 573330, 592441, 612870, 745329, 796731, 1184882, 1242215, 1327885, 1490658, 1593462, 1777323, 2484430, 2655770, 2962205, 3554646, 3726645, 3983655, 5924410, 7453290, 7701733, 7967310, 8886615, 15403466, 17773230, 23105199, 38508665, 46210398, 77017330, 115525995, 231051990]

約数ペア:

[(1, 231051990), (2, 115525995), (3, 77017330), (5, 46210398), (6, 38508665), (10, 23105199), (13, 17773230), (15, 15403466), (26, 8886615), (29, 7967310), (30, 7701733), (31, 7453290), (39, 5924410), (58, 3983655), (62, 3726645), (65, 3554646), (78, 2962205), (87, 2655770), (93, 2484430), (130, 1777323), (145, 1593462), (155, 1490658), (174, 1327885), (186, 1242215), (195, 1184882), (290, 796731), (310, 745329), (377, 612870), (390, 592441), (403, 573330), (435, 531154), (465, 496886), (659, 350610), (754, 306435), (806, 286665), (870, 265577), (899, 257010), (930, 248443), (1131, 204290), (1209, 191110), (1318, 175305), (1798, 128505), (1885, 122574), (1977, 116870), (2015, 114666), (2262, 102145), (2418, 95555), (2697, 85670), (3295, 70122), (3770, 61287), (3954, 58435), (4030, 57333), (4495, 51402), (5394, 42835), (5655, 40858), (6045, 38222), (6590, 35061), (8567, 26970), (8990, 25701), (9885, 23374), (11310, 20429), (11687, 19770), (12090, 19111), (13485, 17134)]