487890400

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:345

約数の個数: 144

約数和(自身を含む): 1247920128

約数和(自身を除く): 760029728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 103, 124, 155, 160, 191, 200, 206, 248, 310, 382, 400, 412, 496, 515, 620, 764, 775, 800, 824, 955, 992, 1030, 1240, 1528, 1550, 1648, 1910, 2060, 2480, 2575, 3056, 3100, 3193, 3296, 3820, 4120, 4775, 4960, 5150, 5921, 6112, 6200, 6386, 7640, 8240, 9550, 10300, 11842, 12400, 12772, 15280, 15965, 16480, 19100, 19673, 20600, 23684, 24800, 25544, 29605, 30560, 31930, 38200, 39346, 41200, 47368, 51088, 59210, 63860, 76400, 78692, 79825, 82400, 94736, 98365, 102176, 118420, 127720, 148025, 152800, 157384, 159650, 189472, 196730, 236840, 255440, 296050, 314768, 319300, 393460, 473680, 491825, 510880, 592100, 609863, 629536, 638600, 786920, 947360, 983650, 1184200, 1219726, 1277200, 1573840, 1967300, 2368400, 2439452, 2554400, 3049315, 3147680, 3934600, 4736800, 4878904, 6098630, 7869200, 9757808, 12197260, 15246575, 15738400, 19515616, 24394520, 30493150, 48789040, 60986300, 97578080, 121972600, 243945200, 487890400]

約数ペア:

[(1, 487890400), (2, 243945200), (4, 121972600), (5, 97578080), (8, 60986300), (10, 48789040), (16, 30493150), (20, 24394520), (25, 19515616), (31, 15738400), (32, 15246575), (40, 12197260), (50, 9757808), (62, 7869200), (80, 6098630), (100, 4878904), (103, 4736800), (124, 3934600), (155, 3147680), (160, 3049315), (191, 2554400), (200, 2439452), (206, 2368400), (248, 1967300), (310, 1573840), (382, 1277200), (400, 1219726), (412, 1184200), (496, 983650), (515, 947360), (620, 786920), (764, 638600), (775, 629536), (800, 609863), (824, 592100), (955, 510880), (992, 491825), (1030, 473680), (1240, 393460), (1528, 319300), (1550, 314768), (1648, 296050), (1910, 255440), (2060, 236840), (2480, 196730), (2575, 189472), (3056, 159650), (3100, 157384), (3193, 152800), (3296, 148025), (3820, 127720), (4120, 118420), (4775, 102176), (4960, 98365), (5150, 94736), (5921, 82400), (6112, 79825), (6200, 78692), (6386, 76400), (7640, 63860), (8240, 59210), (9550, 51088), (10300, 47368), (11842, 41200), (12400, 39346), (12772, 38200), (15280, 31930), (15965, 30560), (16480, 29605), (19100, 25544), (19673, 24800), (20600, 23684)]