8919664

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 80

約数和(自身を含む): 20450080

約数和(自身を除く): 11530416

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 37, 38, 52, 61, 74, 76, 104, 122, 148, 152, 208, 244, 247, 296, 304, 481, 488, 494, 592, 703, 793, 962, 976, 988, 1159, 1406, 1586, 1924, 1976, 2257, 2318, 2812, 3172, 3848, 3952, 4514, 4636, 5624, 6344, 7696, 9028, 9139, 9272, 11248, 12688, 15067, 18056, 18278, 18544, 29341, 30134, 36112, 36556, 42883, 58682, 60268, 73112, 85766, 117364, 120536, 146224, 171532, 234728, 241072, 343064, 469456, 557479, 686128, 1114958, 2229916, 4459832, 8919664]

約数ペア:

[(1, 8919664), (2, 4459832), (4, 2229916), (8, 1114958), (13, 686128), (16, 557479), (19, 469456), (26, 343064), (37, 241072), (38, 234728), (52, 171532), (61, 146224), (74, 120536), (76, 117364), (104, 85766), (122, 73112), (148, 60268), (152, 58682), (208, 42883), (244, 36556), (247, 36112), (296, 30134), (304, 29341), (481, 18544), (488, 18278), (494, 18056), (592, 15067), (703, 12688), (793, 11248), (962, 9272), (976, 9139), (988, 9028), (1159, 7696), (1406, 6344), (1586, 5624), (1924, 4636), (1976, 4514), (2257, 3952), (2318, 3848), (2812, 3172)]