81830700

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:477

約数の個数: 216

約数和(自身を含む): 303313920

約数和(自身を除く): 221483220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 31, 35, 36, 42, 45, 50, 60, 62, 63, 70, 75, 84, 90, 93, 100, 105, 124, 126, 140, 150, 155, 175, 180, 186, 210, 217, 225, 252, 279, 300, 310, 315, 350, 372, 419, 420, 434, 450, 465, 525, 558, 620, 630, 651, 700, 775, 838, 868, 900, 930, 1050, 1085, 1116, 1257, 1260, 1302, 1395, 1550, 1575, 1676, 1860, 1953, 2095, 2100, 2170, 2325, 2514, 2604, 2790, 2933, 3100, 3150, 3255, 3771, 3906, 4190, 4340, 4650, 5028, 5425, 5580, 5866, 6285, 6300, 6510, 6975, 7542, 7812, 8380, 8799, 9300, 9765, 10475, 10850, 11732, 12570, 12989, 13020, 13950, 14665, 15084, 16275, 17598, 18855, 19530, 20950, 21700, 25140, 25978, 26397, 27900, 29330, 31425, 32550, 35196, 37710, 38967, 39060, 41900, 43995, 48825, 51956, 52794, 58660, 62850, 64945, 65100, 73325, 75420, 77934, 87990, 90923, 94275, 97650, 105588, 116901, 125700, 129890, 131985, 146650, 155868, 175980, 181846, 188550, 194835, 195300, 219975, 233802, 259780, 263970, 272769, 293300, 324725, 363692, 377100, 389670, 439950, 454615, 467604, 527940, 545538, 584505, 649450, 659925, 779340, 818307, 879900, 909230, 974175, 1091076, 1169010, 1298900, 1319850, 1363845, 1636614, 1818460, 1948350, 2273075, 2338020, 2639700, 2727690, 2922525, 3273228, 3896700, 4091535, 4546150, 5455380, 5845050, 6819225, 8183070, 9092300, 11690100, 13638450, 16366140, 20457675, 27276900, 40915350, 81830700]

約数ペア:

[(1, 81830700), (2, 40915350), (3, 27276900), (4, 20457675), (5, 16366140), (6, 13638450), (7, 11690100), (9, 9092300), (10, 8183070), (12, 6819225), (14, 5845050), (15, 5455380), (18, 4546150), (20, 4091535), (21, 3896700), (25, 3273228), (28, 2922525), (30, 2727690), (31, 2639700), (35, 2338020), (36, 2273075), (42, 1948350), (45, 1818460), (50, 1636614), (60, 1363845), (62, 1319850), (63, 1298900), (70, 1169010), (75, 1091076), (84, 974175), (90, 909230), (93, 879900), (100, 818307), (105, 779340), (124, 659925), (126, 649450), (140, 584505), (150, 545538), (155, 527940), (175, 467604), (180, 454615), (186, 439950), (210, 389670), (217, 377100), (225, 363692), (252, 324725), (279, 293300), (300, 272769), (310, 263970), (315, 259780), (350, 233802), (372, 219975), (419, 195300), (420, 194835), (434, 188550), (450, 181846), (465, 175980), (525, 155868), (558, 146650), (620, 131985), (630, 129890), (651, 125700), (700, 116901), (775, 105588), (838, 97650), (868, 94275), (900, 90923), (930, 87990), (1050, 77934), (1085, 75420), (1116, 73325), (1257, 65100), (1260, 64945), (1302, 62850), (1395, 58660), (1550, 52794), (1575, 51956), (1676, 48825), (1860, 43995), (1953, 41900), (2095, 39060), (2100, 38967), (2170, 37710), (2325, 35196), (2514, 32550), (2604, 31425), (2790, 29330), (2933, 27900), (3100, 26397), (3150, 25978), (3255, 25140), (3771, 21700), (3906, 20950), (4190, 19530), (4340, 18855), (4650, 17598), (5028, 16275), (5425, 15084), (5580, 14665), (5866, 13950), (6285, 13020), (6300, 12989), (6510, 12570), (6975, 11732), (7542, 10850), (7812, 10475), (8380, 9765), (8799, 9300)]