28559128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 61740000

約数和(自身を除く): 33180872

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 97, 104, 149, 152, 194, 247, 298, 388, 494, 596, 776, 988, 1192, 1261, 1843, 1937, 1976, 2522, 2831, 3686, 3874, 5044, 5662, 7372, 7748, 10088, 11324, 14453, 14744, 15496, 22648, 23959, 28906, 36803, 47918, 57812, 73606, 95836, 115624, 147212, 187889, 191672, 274607, 294424, 375778, 549214, 751556, 1098428, 1503112, 2196856, 3569891, 7139782, 14279564, 28559128]

約数ペア:

[(1, 28559128), (2, 14279564), (4, 7139782), (8, 3569891), (13, 2196856), (19, 1503112), (26, 1098428), (38, 751556), (52, 549214), (76, 375778), (97, 294424), (104, 274607), (149, 191672), (152, 187889), (194, 147212), (247, 115624), (298, 95836), (388, 73606), (494, 57812), (596, 47918), (776, 36803), (988, 28906), (1192, 23959), (1261, 22648), (1843, 15496), (1937, 14744), (1976, 14453), (2522, 11324), (2831, 10088), (3686, 7748), (3874, 7372), (5044, 5662)]