2549143640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{503}}^1$

素因数の和:673

約数の個数: 128

約数和(自身を含む): 6119608320

約数和(自身を除く): 3570464680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 67, 122, 124, 134, 155, 244, 248, 268, 305, 310, 335, 488, 503, 536, 610, 620, 670, 1006, 1220, 1240, 1340, 1891, 2012, 2077, 2440, 2515, 2680, 3782, 4024, 4087, 4154, 5030, 7564, 8174, 8308, 9455, 10060, 10385, 15128, 15593, 16348, 16616, 18910, 20120, 20435, 20770, 30683, 31186, 32696, 33701, 37820, 40870, 41540, 61366, 62372, 67402, 75640, 77965, 81740, 83080, 122732, 124744, 126697, 134804, 153415, 155930, 163480, 168505, 245464, 253394, 269608, 306830, 311860, 337010, 506788, 613660, 623720, 633485, 674020, 951173, 1013576, 1044731, 1227320, 1266970, 1348040, 1902346, 2055761, 2089462, 2533940, 3804692, 4111522, 4178924, 4755865, 5067880, 5223655, 7609384, 8223044, 8357848, 9511730, 10278805, 10447310, 16446088, 19023460, 20557610, 20894620, 38046920, 41115220, 41789240, 63728591, 82230440, 127457182, 254914364, 318642955, 509828728, 637285910, 1274571820, 2549143640]

約数ペア:

[(1, 2549143640), (2, 1274571820), (4, 637285910), (5, 509828728), (8, 318642955), (10, 254914364), (20, 127457182), (31, 82230440), (40, 63728591), (61, 41789240), (62, 41115220), (67, 38046920), (122, 20894620), (124, 20557610), (134, 19023460), (155, 16446088), (244, 10447310), (248, 10278805), (268, 9511730), (305, 8357848), (310, 8223044), (335, 7609384), (488, 5223655), (503, 5067880), (536, 4755865), (610, 4178924), (620, 4111522), (670, 3804692), (1006, 2533940), (1220, 2089462), (1240, 2055761), (1340, 1902346), (1891, 1348040), (2012, 1266970), (2077, 1227320), (2440, 1044731), (2515, 1013576), (2680, 951173), (3782, 674020), (4024, 633485), (4087, 623720), (4154, 613660), (5030, 506788), (7564, 337010), (8174, 311860), (8308, 306830), (9455, 269608), (10060, 253394), (10385, 245464), (15128, 168505), (15593, 163480), (16348, 155930), (16616, 153415), (18910, 134804), (20120, 126697), (20435, 124744), (20770, 122732), (30683, 83080), (31186, 81740), (32696, 77965), (33701, 75640), (37820, 67402), (40870, 62372), (41540, 61366)]