491138320

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1\times {\mathrm{911}}^1$

素因数の和:1240

約数の個数: 80

約数和(自身を含む): 1196923392

約数和(自身を除く): 705785072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 293, 368, 460, 586, 911, 920, 1172, 1465, 1822, 1840, 2344, 2930, 3644, 4555, 4688, 5860, 6739, 7288, 9110, 11720, 13478, 14576, 18220, 20953, 23440, 26956, 33695, 36440, 41906, 53912, 67390, 72880, 83812, 104765, 107824, 134780, 167624, 209530, 266923, 269560, 335248, 419060, 533846, 539120, 838120, 1067692, 1334615, 1676240, 2135384, 2669230, 4270768, 5338460, 6139229, 10676920, 12278458, 21353840, 24556916, 30696145, 49113832, 61392290, 98227664, 122784580, 245569160, 491138320]

約数ペア:

[(1, 491138320), (2, 245569160), (4, 122784580), (5, 98227664), (8, 61392290), (10, 49113832), (16, 30696145), (20, 24556916), (23, 21353840), (40, 12278458), (46, 10676920), (80, 6139229), (92, 5338460), (115, 4270768), (184, 2669230), (230, 2135384), (293, 1676240), (368, 1334615), (460, 1067692), (586, 838120), (911, 539120), (920, 533846), (1172, 419060), (1465, 335248), (1822, 269560), (1840, 266923), (2344, 209530), (2930, 167624), (3644, 134780), (4555, 107824), (4688, 104765), (5860, 83812), (6739, 72880), (7288, 67390), (9110, 53912), (11720, 41906), (13478, 36440), (14576, 33695), (18220, 26956), (20953, 23440)]