72490400

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:167

約数の個数: 144

約数和(自身を含む): 189987840

約数和(自身を除く): 117497440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 37, 40, 50, 62, 74, 79, 80, 100, 124, 148, 155, 158, 160, 185, 200, 248, 296, 310, 316, 370, 395, 400, 496, 592, 620, 632, 740, 775, 790, 800, 925, 992, 1147, 1184, 1240, 1264, 1480, 1550, 1580, 1850, 1975, 2294, 2449, 2480, 2528, 2923, 2960, 3100, 3160, 3700, 3950, 4588, 4898, 4960, 5735, 5846, 5920, 6200, 6320, 7400, 7900, 9176, 9796, 11470, 11692, 12245, 12400, 12640, 14615, 14800, 15800, 18352, 19592, 22940, 23384, 24490, 24800, 28675, 29230, 29600, 31600, 36704, 39184, 45880, 46768, 48980, 57350, 58460, 61225, 63200, 73075, 78368, 90613, 91760, 93536, 97960, 114700, 116920, 122450, 146150, 181226, 183520, 195920, 229400, 233840, 244900, 292300, 362452, 391840, 453065, 458800, 467680, 489800, 584600, 724904, 906130, 917600, 979600, 1169200, 1449808, 1812260, 1959200, 2265325, 2338400, 2899616, 3624520, 4530650, 7249040, 9061300, 14498080, 18122600, 36245200, 72490400]

約数ペア:

[(1, 72490400), (2, 36245200), (4, 18122600), (5, 14498080), (8, 9061300), (10, 7249040), (16, 4530650), (20, 3624520), (25, 2899616), (31, 2338400), (32, 2265325), (37, 1959200), (40, 1812260), (50, 1449808), (62, 1169200), (74, 979600), (79, 917600), (80, 906130), (100, 724904), (124, 584600), (148, 489800), (155, 467680), (158, 458800), (160, 453065), (185, 391840), (200, 362452), (248, 292300), (296, 244900), (310, 233840), (316, 229400), (370, 195920), (395, 183520), (400, 181226), (496, 146150), (592, 122450), (620, 116920), (632, 114700), (740, 97960), (775, 93536), (790, 91760), (800, 90613), (925, 78368), (992, 73075), (1147, 63200), (1184, 61225), (1240, 58460), (1264, 57350), (1480, 48980), (1550, 46768), (1580, 45880), (1850, 39184), (1975, 36704), (2294, 31600), (2449, 29600), (2480, 29230), (2528, 28675), (2923, 24800), (2960, 24490), (3100, 23384), (3160, 22940), (3700, 19592), (3950, 18352), (4588, 15800), (4898, 14800), (4960, 14615), (5735, 12640), (5846, 12400), (5920, 12245), (6200, 11692), (6320, 11470), (7400, 9796), (7900, 9176)]