78527960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:241

約数の個数: 128

約数和(自身を含む): 212889600

約数和(自身を除く): 134361640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 83, 109, 124, 140, 155, 166, 217, 218, 248, 280, 310, 332, 415, 434, 436, 545, 581, 620, 664, 763, 830, 868, 872, 1085, 1090, 1162, 1240, 1526, 1660, 1736, 2170, 2180, 2324, 2573, 2905, 3052, 3320, 3379, 3815, 4340, 4360, 4648, 5146, 5810, 6104, 6758, 7630, 8680, 9047, 10292, 11620, 12865, 13516, 15260, 16895, 18011, 18094, 20584, 23240, 23653, 25730, 27032, 30520, 33790, 36022, 36188, 45235, 47306, 51460, 63329, 67580, 72044, 72376, 90055, 90470, 94612, 102920, 118265, 126658, 135160, 144088, 180110, 180940, 189224, 236530, 253316, 280457, 316645, 360220, 361880, 473060, 506632, 560914, 633290, 720440, 946120, 1121828, 1266580, 1402285, 1963199, 2243656, 2533160, 2804570, 3926398, 5609140, 7852796, 9815995, 11218280, 15705592, 19631990, 39263980, 78527960]

約数ペア:

[(1, 78527960), (2, 39263980), (4, 19631990), (5, 15705592), (7, 11218280), (8, 9815995), (10, 7852796), (14, 5609140), (20, 3926398), (28, 2804570), (31, 2533160), (35, 2243656), (40, 1963199), (56, 1402285), (62, 1266580), (70, 1121828), (83, 946120), (109, 720440), (124, 633290), (140, 560914), (155, 506632), (166, 473060), (217, 361880), (218, 360220), (248, 316645), (280, 280457), (310, 253316), (332, 236530), (415, 189224), (434, 180940), (436, 180110), (545, 144088), (581, 135160), (620, 126658), (664, 118265), (763, 102920), (830, 94612), (868, 90470), (872, 90055), (1085, 72376), (1090, 72044), (1162, 67580), (1240, 63329), (1526, 51460), (1660, 47306), (1736, 45235), (2170, 36188), (2180, 36022), (2324, 33790), (2573, 30520), (2905, 27032), (3052, 25730), (3320, 23653), (3379, 23240), (3815, 20584), (4340, 18094), (4360, 18011), (4648, 16895), (5146, 15260), (5810, 13516), (6104, 12865), (6758, 11620), (7630, 10292), (8680, 9047)]