395758400

素因数分解:

$2^6\times 5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:233

約数の個数: 168

約数和(自身を含む): 1028029440

約数和(自身を除く): 632271040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 79, 80, 100, 101, 124, 155, 158, 160, 200, 202, 248, 310, 316, 320, 395, 400, 404, 496, 505, 620, 632, 775, 790, 800, 808, 992, 1010, 1240, 1264, 1550, 1580, 1600, 1616, 1975, 1984, 2020, 2449, 2480, 2525, 2528, 3100, 3131, 3160, 3232, 3950, 4040, 4898, 4960, 5050, 5056, 6200, 6262, 6320, 6464, 7900, 7979, 8080, 9796, 9920, 10100, 12245, 12400, 12524, 12640, 15655, 15800, 15958, 16160, 19592, 20200, 24490, 24800, 25048, 25280, 31310, 31600, 31916, 32320, 39184, 39895, 40400, 48980, 49600, 50096, 61225, 62620, 63200, 63832, 78275, 78368, 79790, 80800, 97960, 100192, 122450, 125240, 126400, 127664, 156550, 156736, 159580, 161600, 195920, 199475, 200384, 244900, 247349, 250480, 255328, 313100, 319160, 391840, 398950, 489800, 494698, 500960, 510656, 626200, 638320, 783680, 797900, 979600, 989396, 1001920, 1236745, 1252400, 1276640, 1595800, 1959200, 1978792, 2473490, 2504800, 2553280, 3191600, 3918400, 3957584, 4946980, 5009600, 6183725, 6383200, 7915168, 9893960, 12367450, 12766400, 15830336, 19787920, 24734900, 39575840, 49469800, 79151680, 98939600, 197879200, 395758400]

約数ペア:

[(1, 395758400), (2, 197879200), (4, 98939600), (5, 79151680), (8, 49469800), (10, 39575840), (16, 24734900), (20, 19787920), (25, 15830336), (31, 12766400), (32, 12367450), (40, 9893960), (50, 7915168), (62, 6383200), (64, 6183725), (79, 5009600), (80, 4946980), (100, 3957584), (101, 3918400), (124, 3191600), (155, 2553280), (158, 2504800), (160, 2473490), (200, 1978792), (202, 1959200), (248, 1595800), (310, 1276640), (316, 1252400), (320, 1236745), (395, 1001920), (400, 989396), (404, 979600), (496, 797900), (505, 783680), (620, 638320), (632, 626200), (775, 510656), (790, 500960), (800, 494698), (808, 489800), (992, 398950), (1010, 391840), (1240, 319160), (1264, 313100), (1550, 255328), (1580, 250480), (1600, 247349), (1616, 244900), (1975, 200384), (1984, 199475), (2020, 195920), (2449, 161600), (2480, 159580), (2525, 156736), (2528, 156550), (3100, 127664), (3131, 126400), (3160, 125240), (3232, 122450), (3950, 100192), (4040, 97960), (4898, 80800), (4960, 79790), (5050, 78368), (5056, 78275), (6200, 63832), (6262, 63200), (6320, 62620), (6464, 61225), (7900, 50096), (7979, 49600), (8080, 48980), (9796, 40400), (9920, 39895), (10100, 39184), (12245, 32320), (12400, 31916), (12524, 31600), (12640, 31310), (15655, 25280), (15800, 25048), (15958, 24800), (16160, 24490), (19592, 20200)]