28653976

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{853}}^1$

素因数の和:908

約数の個数: 64

約数和(自身を含む): 64562400

約数和(自身を除く): 35908424

約数列:

[1, 2, 4, 8, 13, 17, 19, 26, 34, 38, 52, 68, 76, 104, 136, 152, 221, 247, 323, 442, 494, 646, 853, 884, 988, 1292, 1706, 1768, 1976, 2584, 3412, 4199, 6824, 8398, 11089, 14501, 16207, 16796, 22178, 29002, 32414, 33592, 44356, 58004, 64828, 88712, 116008, 129656, 188513, 210691, 275519, 377026, 421382, 551038, 754052, 842764, 1102076, 1508104, 1685528, 2204152, 3581747, 7163494, 14326988, 28653976]

約数ペア:

[(1, 28653976), (2, 14326988), (4, 7163494), (8, 3581747), (13, 2204152), (17, 1685528), (19, 1508104), (26, 1102076), (34, 842764), (38, 754052), (52, 551038), (68, 421382), (76, 377026), (104, 275519), (136, 210691), (152, 188513), (221, 129656), (247, 116008), (323, 88712), (442, 64828), (494, 58004), (646, 44356), (853, 33592), (884, 32414), (988, 29002), (1292, 22178), (1706, 16796), (1768, 16207), (1976, 14501), (2584, 11089), (3412, 8398), (4199, 6824)]