28685384

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^2\times {\mathrm{433}}^1$

素因数の和:479

約数の個数: 72

約数和(自身を含む): 67905810

約数和(自身を除く): 39220426

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 169, 182, 196, 338, 364, 392, 433, 637, 676, 728, 866, 1183, 1274, 1352, 1732, 2366, 2548, 3031, 3464, 4732, 5096, 5629, 6062, 8281, 9464, 11258, 12124, 16562, 21217, 22516, 24248, 33124, 39403, 42434, 45032, 66248, 73177, 78806, 84868, 146354, 157612, 169736, 275821, 292708, 315224, 512239, 551642, 585416, 1024478, 1103284, 2048956, 2206568, 3585673, 4097912, 7171346, 14342692, 28685384]

約数ペア:

[(1, 28685384), (2, 14342692), (4, 7171346), (7, 4097912), (8, 3585673), (13, 2206568), (14, 2048956), (26, 1103284), (28, 1024478), (49, 585416), (52, 551642), (56, 512239), (91, 315224), (98, 292708), (104, 275821), (169, 169736), (182, 157612), (196, 146354), (338, 84868), (364, 78806), (392, 73177), (433, 66248), (637, 45032), (676, 42434), (728, 39403), (866, 33124), (1183, 24248), (1274, 22516), (1352, 21217), (1732, 16562), (2366, 12124), (2548, 11258), (3031, 9464), (3464, 8281), (4732, 6062), (5096, 5629)]