199975880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:291

約数の個数: 128

約数和(自身を含む): 510300000

約数和(自身を除く): 310324120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 89, 104, 116, 130, 145, 149, 178, 232, 260, 290, 298, 356, 377, 445, 520, 580, 596, 712, 745, 754, 890, 1157, 1160, 1192, 1490, 1508, 1780, 1885, 1937, 2314, 2581, 2980, 3016, 3560, 3770, 3874, 4321, 4628, 5162, 5785, 5960, 7540, 7748, 8642, 9256, 9685, 10324, 11570, 12905, 13261, 15080, 15496, 17284, 19370, 20648, 21605, 23140, 25810, 26522, 33553, 34568, 38740, 43210, 46280, 51620, 53044, 56173, 66305, 67106, 77480, 86420, 103240, 106088, 112346, 132610, 134212, 167765, 172393, 172840, 224692, 265220, 268424, 280865, 335530, 344786, 384569, 449384, 530440, 561730, 671060, 689572, 769138, 861965, 1123460, 1342120, 1379144, 1538276, 1723930, 1922845, 2246920, 3076552, 3447860, 3845690, 4999397, 6895720, 7691380, 9998794, 15382760, 19997588, 24996985, 39995176, 49993970, 99987940, 199975880]

約数ペア:

[(1, 199975880), (2, 99987940), (4, 49993970), (5, 39995176), (8, 24996985), (10, 19997588), (13, 15382760), (20, 9998794), (26, 7691380), (29, 6895720), (40, 4999397), (52, 3845690), (58, 3447860), (65, 3076552), (89, 2246920), (104, 1922845), (116, 1723930), (130, 1538276), (145, 1379144), (149, 1342120), (178, 1123460), (232, 861965), (260, 769138), (290, 689572), (298, 671060), (356, 561730), (377, 530440), (445, 449384), (520, 384569), (580, 344786), (596, 335530), (712, 280865), (745, 268424), (754, 265220), (890, 224692), (1157, 172840), (1160, 172393), (1192, 167765), (1490, 134212), (1508, 132610), (1780, 112346), (1885, 106088), (1937, 103240), (2314, 86420), (2581, 77480), (2980, 67106), (3016, 66305), (3560, 56173), (3770, 53044), (3874, 51620), (4321, 46280), (4628, 43210), (5162, 38740), (5785, 34568), (5960, 33553), (7540, 26522), (7748, 25810), (8642, 23140), (9256, 21605), (9685, 20648), (10324, 19370), (11570, 17284), (12905, 15496), (13261, 15080)]