28019940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35923}}^1$

素因数の和:35948

約数の個数: 48

約数和(自身を含む): 84493248

約数和(自身を除く): 56473308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 35923, 71846, 107769, 143692, 179615, 215538, 359230, 431076, 466999, 538845, 718460, 933998, 1077690, 1400997, 1867996, 2155380, 2334995, 2801994, 4669990, 5603988, 7004985, 9339980, 14009970, 28019940]

約数ペア:

[(1, 28019940), (2, 14009970), (3, 9339980), (4, 7004985), (5, 5603988), (6, 4669990), (10, 2801994), (12, 2334995), (13, 2155380), (15, 1867996), (20, 1400997), (26, 1077690), (30, 933998), (39, 718460), (52, 538845), (60, 466999), (65, 431076), (78, 359230), (130, 215538), (156, 179615), (195, 143692), (260, 107769), (390, 71846), (780, 35923)]