813149840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{17257}}^1$

素因数の和:17320

約数の個数: 80

約数和(自身を含む): 2054392320

約数和(自身を除く): 1241242480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 760, 1178, 1240, 1520, 2356, 2480, 2945, 4712, 5890, 9424, 11780, 17257, 23560, 34514, 47120, 69028, 86285, 138056, 172570, 276112, 327883, 345140, 534967, 655766, 690280, 1069934, 1311532, 1380560, 1639415, 2139868, 2623064, 2674835, 3278830, 4279736, 5246128, 5349670, 6557660, 8559472, 10164373, 10699340, 13115320, 20328746, 21398680, 26230640, 40657492, 42797360, 50821865, 81314984, 101643730, 162629968, 203287460, 406574920, 813149840]

約数ペア:

[(1, 813149840), (2, 406574920), (4, 203287460), (5, 162629968), (8, 101643730), (10, 81314984), (16, 50821865), (19, 42797360), (20, 40657492), (31, 26230640), (38, 21398680), (40, 20328746), (62, 13115320), (76, 10699340), (80, 10164373), (95, 8559472), (124, 6557660), (152, 5349670), (155, 5246128), (190, 4279736), (248, 3278830), (304, 2674835), (310, 2623064), (380, 2139868), (496, 1639415), (589, 1380560), (620, 1311532), (760, 1069934), (1178, 690280), (1240, 655766), (1520, 534967), (2356, 345140), (2480, 327883), (2945, 276112), (4712, 172570), (5890, 138056), (9424, 86285), (11780, 69028), (17257, 47120), (23560, 34514)]