255840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1$

素因数の和:72

約数の個数: 96

約数和(自身を含む): 889056

約数和(自身を除く): 633216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 41, 48, 52, 60, 65, 78, 80, 82, 96, 104, 120, 123, 130, 156, 160, 164, 195, 205, 208, 240, 246, 260, 312, 328, 390, 410, 416, 480, 492, 520, 533, 615, 624, 656, 780, 820, 984, 1040, 1066, 1230, 1248, 1312, 1560, 1599, 1640, 1968, 2080, 2132, 2460, 2665, 3120, 3198, 3280, 3936, 4264, 4920, 5330, 6240, 6396, 6560, 7995, 8528, 9840, 10660, 12792, 15990, 17056, 19680, 21320, 25584, 31980, 42640, 51168, 63960, 85280, 127920, 255840]

約数ペア:

[(1, 255840), (2, 127920), (3, 85280), (4, 63960), (5, 51168), (6, 42640), (8, 31980), (10, 25584), (12, 21320), (13, 19680), (15, 17056), (16, 15990), (20, 12792), (24, 10660), (26, 9840), (30, 8528), (32, 7995), (39, 6560), (40, 6396), (41, 6240), (48, 5330), (52, 4920), (60, 4264), (65, 3936), (78, 3280), (80, 3198), (82, 3120), (96, 2665), (104, 2460), (120, 2132), (123, 2080), (130, 1968), (156, 1640), (160, 1599), (164, 1560), (195, 1312), (205, 1248), (208, 1230), (240, 1066), (246, 1040), (260, 984), (312, 820), (328, 780), (390, 656), (410, 624), (416, 615), (480, 533), (492, 520)]