31012380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{163}}^1$

素因数の和:336

約数の個数: 144

約数和(自身を含む): 108885504

約数和(自身を除く): 77873124

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 151, 163, 180, 210, 252, 302, 315, 326, 420, 453, 489, 604, 630, 652, 755, 815, 906, 978, 1057, 1141, 1260, 1359, 1467, 1510, 1630, 1812, 1956, 2114, 2265, 2282, 2445, 2718, 2934, 3020, 3171, 3260, 3423, 4228, 4530, 4564, 4890, 5285, 5436, 5705, 5868, 6342, 6795, 6846, 7335, 9060, 9513, 9780, 10269, 10570, 11410, 12684, 13590, 13692, 14670, 15855, 17115, 19026, 20538, 21140, 22820, 24613, 27180, 29340, 31710, 34230, 38052, 41076, 47565, 49226, 51345, 63420, 68460, 73839, 95130, 98452, 102690, 123065, 147678, 172291, 190260, 205380, 221517, 246130, 295356, 344582, 369195, 443034, 492260, 516873, 689164, 738390, 861455, 886068, 1033746, 1107585, 1476780, 1550619, 1722910, 2067492, 2215170, 2584365, 3101238, 3445820, 4430340, 5168730, 6202476, 7753095, 10337460, 15506190, 31012380]

約数ペア:

[(1, 31012380), (2, 15506190), (3, 10337460), (4, 7753095), (5, 6202476), (6, 5168730), (7, 4430340), (9, 3445820), (10, 3101238), (12, 2584365), (14, 2215170), (15, 2067492), (18, 1722910), (20, 1550619), (21, 1476780), (28, 1107585), (30, 1033746), (35, 886068), (36, 861455), (42, 738390), (45, 689164), (60, 516873), (63, 492260), (70, 443034), (84, 369195), (90, 344582), (105, 295356), (126, 246130), (140, 221517), (151, 205380), (163, 190260), (180, 172291), (210, 147678), (252, 123065), (302, 102690), (315, 98452), (326, 95130), (420, 73839), (453, 68460), (489, 63420), (604, 51345), (630, 49226), (652, 47565), (755, 41076), (815, 38052), (906, 34230), (978, 31710), (1057, 29340), (1141, 27180), (1260, 24613), (1359, 22820), (1467, 21140), (1510, 20538), (1630, 19026), (1812, 17115), (1956, 15855), (2114, 14670), (2265, 13692), (2282, 13590), (2445, 12684), (2718, 11410), (2934, 10570), (3020, 10269), (3171, 9780), (3260, 9513), (3423, 9060), (4228, 7335), (4530, 6846), (4564, 6795), (4890, 6342), (5285, 5868), (5436, 5705)]