18512227840

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{2621}}^1$

素因数の和:2764

約数の個数: 160

約数和(自身を含む): 46350247680

約数和(自身を除く): 27838019840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 89, 124, 128, 155, 160, 178, 248, 256, 310, 320, 356, 445, 496, 512, 620, 640, 712, 890, 992, 1240, 1280, 1424, 1780, 1984, 2480, 2560, 2621, 2759, 2848, 3560, 3968, 4960, 5242, 5518, 5696, 7120, 7936, 9920, 10484, 11036, 11392, 13105, 13795, 14240, 15872, 19840, 20968, 22072, 22784, 26210, 27590, 28480, 39680, 41936, 44144, 45568, 52420, 55180, 56960, 79360, 81251, 83872, 88288, 104840, 110360, 113920, 162502, 167744, 176576, 209680, 220720, 227840, 233269, 325004, 335488, 353152, 406255, 419360, 441440, 466538, 650008, 670976, 706304, 812510, 838720, 882880, 933076, 1166345, 1300016, 1341952, 1412608, 1625020, 1677440, 1765760, 1866152, 2332690, 2600032, 3250040, 3354880, 3531520, 3732304, 4665380, 5200064, 6500080, 6709760, 7063040, 7231339, 7464608, 9330760, 10400128, 13000160, 14462678, 14929216, 18661520, 20800256, 26000320, 28925356, 29858432, 36156695, 37323040, 41600512, 52000640, 57850712, 59716864, 72313390, 74646080, 104001280, 115701424, 119433728, 144626780, 149292160, 208002560, 231402848, 289253560, 298584320, 462805696, 578507120, 597168640, 925611392, 1157014240, 1851222784, 2314028480, 3702445568, 4628056960, 9256113920, 18512227840]

約数ペア:

[(1, 18512227840), (2, 9256113920), (4, 4628056960), (5, 3702445568), (8, 2314028480), (10, 1851222784), (16, 1157014240), (20, 925611392), (31, 597168640), (32, 578507120), (40, 462805696), (62, 298584320), (64, 289253560), (80, 231402848), (89, 208002560), (124, 149292160), (128, 144626780), (155, 119433728), (160, 115701424), (178, 104001280), (248, 74646080), (256, 72313390), (310, 59716864), (320, 57850712), (356, 52000640), (445, 41600512), (496, 37323040), (512, 36156695), (620, 29858432), (640, 28925356), (712, 26000320), (890, 20800256), (992, 18661520), (1240, 14929216), (1280, 14462678), (1424, 13000160), (1780, 10400128), (1984, 9330760), (2480, 7464608), (2560, 7231339), (2621, 7063040), (2759, 6709760), (2848, 6500080), (3560, 5200064), (3968, 4665380), (4960, 3732304), (5242, 3531520), (5518, 3354880), (5696, 3250040), (7120, 2600032), (7936, 2332690), (9920, 1866152), (10484, 1765760), (11036, 1677440), (11392, 1625020), (13105, 1412608), (13795, 1341952), (14240, 1300016), (15872, 1166345), (19840, 933076), (20968, 882880), (22072, 838720), (22784, 812510), (26210, 706304), (27590, 670976), (28480, 650008), (39680, 466538), (41936, 441440), (44144, 419360), (45568, 406255), (52420, 353152), (55180, 335488), (56960, 325004), (79360, 233269), (81251, 227840), (83872, 220720), (88288, 209680), (104840, 176576), (110360, 167744), (113920, 162502)]