15631720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1307}}^1$

素因数の和:1354

約数の個数: 64

約数和(自身を含む): 39553920

約数和(自身を除く): 23922200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 130, 184, 230, 260, 299, 460, 520, 598, 920, 1196, 1307, 1495, 2392, 2614, 2990, 5228, 5980, 6535, 10456, 11960, 13070, 16991, 26140, 30061, 33982, 52280, 60122, 67964, 84955, 120244, 135928, 150305, 169910, 240488, 300610, 339820, 390793, 601220, 679640, 781586, 1202440, 1563172, 1953965, 3126344, 3907930, 7815860, 15631720]

約数ペア:

[(1, 15631720), (2, 7815860), (4, 3907930), (5, 3126344), (8, 1953965), (10, 1563172), (13, 1202440), (20, 781586), (23, 679640), (26, 601220), (40, 390793), (46, 339820), (52, 300610), (65, 240488), (92, 169910), (104, 150305), (115, 135928), (130, 120244), (184, 84955), (230, 67964), (260, 60122), (299, 52280), (460, 33982), (520, 30061), (598, 26140), (920, 16991), (1196, 13070), (1307, 11960), (1495, 10456), (2392, 6535), (2614, 5980), (2990, 5228)]