180451664

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:388

約数の個数: 80

約数和(自身を含む): 385630080

約数和(自身を除く): 205178416

約数列:

[1, 2, 4, 8, 16, 19, 37, 38, 61, 74, 76, 122, 148, 152, 244, 263, 296, 304, 488, 526, 592, 703, 976, 1052, 1159, 1406, 2104, 2257, 2318, 2812, 4208, 4514, 4636, 4997, 5624, 9028, 9272, 9731, 9994, 11248, 16043, 18056, 18544, 19462, 19988, 32086, 36112, 38924, 39976, 42883, 64172, 77848, 79952, 85766, 128344, 155696, 171532, 184889, 256688, 304817, 343064, 369778, 593591, 609634, 686128, 739556, 1187182, 1219268, 1479112, 2374364, 2438536, 2958224, 4748728, 4877072, 9497456, 11278229, 22556458, 45112916, 90225832, 180451664]

約数ペア:

[(1, 180451664), (2, 90225832), (4, 45112916), (8, 22556458), (16, 11278229), (19, 9497456), (37, 4877072), (38, 4748728), (61, 2958224), (74, 2438536), (76, 2374364), (122, 1479112), (148, 1219268), (152, 1187182), (244, 739556), (263, 686128), (296, 609634), (304, 593591), (488, 369778), (526, 343064), (592, 304817), (703, 256688), (976, 184889), (1052, 171532), (1159, 155696), (1406, 128344), (2104, 85766), (2257, 79952), (2318, 77848), (2812, 64172), (4208, 42883), (4514, 39976), (4636, 38924), (4997, 36112), (5624, 32086), (9028, 19988), (9272, 19462), (9731, 18544), (9994, 18056), (11248, 16043)]