640726560

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9467}}^1$

素因数の和:9535

約数の個数: 144

約数和(自身を含む): 2233236096

約数和(自身を除く): 1592509536

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 47, 48, 60, 72, 80, 90, 94, 96, 120, 141, 144, 160, 180, 188, 235, 240, 282, 288, 360, 376, 423, 470, 480, 564, 705, 720, 752, 846, 940, 1128, 1410, 1440, 1504, 1692, 1880, 2115, 2256, 2820, 3384, 3760, 4230, 4512, 5640, 6768, 7520, 8460, 9467, 11280, 13536, 16920, 18934, 22560, 28401, 33840, 37868, 47335, 56802, 67680, 75736, 85203, 94670, 113604, 142005, 151472, 170406, 189340, 227208, 284010, 302944, 340812, 378680, 426015, 444949, 454416, 568020, 681624, 757360, 852030, 889898, 908832, 1136040, 1334847, 1363248, 1514720, 1704060, 1779796, 2224745, 2272080, 2669694, 2726496, 3408120, 3559592, 4004541, 4449490, 4544160, 5339388, 6674235, 6816240, 7119184, 8009082, 8898980, 10678776, 13348470, 13632480, 14238368, 16018164, 17797960, 20022705, 21357552, 26696940, 32036328, 35595920, 40045410, 42715104, 53393880, 64072656, 71191840, 80090820, 106787760, 128145312, 160181640, 213575520, 320363280, 640726560]

約数ペア:

[(1, 640726560), (2, 320363280), (3, 213575520), (4, 160181640), (5, 128145312), (6, 106787760), (8, 80090820), (9, 71191840), (10, 64072656), (12, 53393880), (15, 42715104), (16, 40045410), (18, 35595920), (20, 32036328), (24, 26696940), (30, 21357552), (32, 20022705), (36, 17797960), (40, 16018164), (45, 14238368), (47, 13632480), (48, 13348470), (60, 10678776), (72, 8898980), (80, 8009082), (90, 7119184), (94, 6816240), (96, 6674235), (120, 5339388), (141, 4544160), (144, 4449490), (160, 4004541), (180, 3559592), (188, 3408120), (235, 2726496), (240, 2669694), (282, 2272080), (288, 2224745), (360, 1779796), (376, 1704060), (423, 1514720), (470, 1363248), (480, 1334847), (564, 1136040), (705, 908832), (720, 889898), (752, 852030), (846, 757360), (940, 681624), (1128, 568020), (1410, 454416), (1440, 444949), (1504, 426015), (1692, 378680), (1880, 340812), (2115, 302944), (2256, 284010), (2820, 227208), (3384, 189340), (3760, 170406), (4230, 151472), (4512, 142005), (5640, 113604), (6768, 94670), (7520, 85203), (8460, 75736), (9467, 67680), (11280, 56802), (13536, 47335), (16920, 37868), (18934, 33840), (22560, 28401)]