205877820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{383}}^1$

素因数の和:460

約数の個数: 144

約数和(自身を含む): 633765888

約数和(自身を除く): 427888068

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 31, 34, 51, 60, 62, 68, 85, 93, 102, 124, 155, 170, 186, 204, 255, 289, 310, 340, 372, 383, 465, 510, 527, 578, 620, 766, 867, 930, 1020, 1054, 1149, 1156, 1445, 1532, 1581, 1734, 1860, 1915, 2108, 2298, 2635, 2890, 3162, 3468, 3830, 4335, 4596, 5270, 5745, 5780, 6324, 6511, 7660, 7905, 8670, 8959, 10540, 11490, 11873, 13022, 15810, 17340, 17918, 19533, 22980, 23746, 26044, 26877, 31620, 32555, 35619, 35836, 39066, 44795, 47492, 53754, 59365, 65110, 71238, 78132, 89590, 97665, 107508, 110687, 118730, 130220, 134385, 142476, 178095, 179180, 195330, 201841, 221374, 237460, 268770, 332061, 356190, 390660, 403682, 442748, 537540, 553435, 605523, 664122, 712380, 807364, 1009205, 1106870, 1211046, 1328244, 1660305, 2018410, 2213740, 2422092, 3027615, 3320610, 3431297, 4036820, 6055230, 6641220, 6862594, 10293891, 12110460, 13725188, 17156485, 20587782, 34312970, 41175564, 51469455, 68625940, 102938910, 205877820]

約数ペア:

[(1, 205877820), (2, 102938910), (3, 68625940), (4, 51469455), (5, 41175564), (6, 34312970), (10, 20587782), (12, 17156485), (15, 13725188), (17, 12110460), (20, 10293891), (30, 6862594), (31, 6641220), (34, 6055230), (51, 4036820), (60, 3431297), (62, 3320610), (68, 3027615), (85, 2422092), (93, 2213740), (102, 2018410), (124, 1660305), (155, 1328244), (170, 1211046), (186, 1106870), (204, 1009205), (255, 807364), (289, 712380), (310, 664122), (340, 605523), (372, 553435), (383, 537540), (465, 442748), (510, 403682), (527, 390660), (578, 356190), (620, 332061), (766, 268770), (867, 237460), (930, 221374), (1020, 201841), (1054, 195330), (1149, 179180), (1156, 178095), (1445, 142476), (1532, 134385), (1581, 130220), (1734, 118730), (1860, 110687), (1915, 107508), (2108, 97665), (2298, 89590), (2635, 78132), (2890, 71238), (3162, 65110), (3468, 59365), (3830, 53754), (4335, 47492), (4596, 44795), (5270, 39066), (5745, 35836), (5780, 35619), (6324, 32555), (6511, 31620), (7660, 26877), (7905, 26044), (8670, 23746), (8959, 22980), (10540, 19533), (11490, 17918), (11873, 17340), (13022, 15810)]