278567640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19841}}^1$

素因数の和:19874

約数の個数: 128

約数和(自身を含む): 1000036800

約数和(自身を除く): 721469160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 180, 195, 216, 234, 260, 270, 312, 351, 360, 390, 468, 520, 540, 585, 702, 780, 936, 1080, 1170, 1404, 1560, 1755, 2340, 2808, 3510, 4680, 7020, 14040, 19841, 39682, 59523, 79364, 99205, 119046, 158728, 178569, 198410, 238092, 257933, 297615, 357138, 396820, 476184, 515866, 535707, 595230, 714276, 773799, 793640, 892845, 1031732, 1071414, 1190460, 1289665, 1428552, 1547598, 1785690, 2063464, 2142828, 2321397, 2380920, 2579330, 2678535, 3095196, 3571380, 3868995, 4285656, 4642794, 5158660, 5357070, 6190392, 6964191, 7142760, 7737990, 9285588, 10317320, 10714140, 11606985, 13928382, 15475980, 18571176, 21428280, 23213970, 27856764, 30951960, 34820955, 46427940, 55713528, 69641910, 92855880, 139283820, 278567640]

約数ペア:

[(1, 278567640), (2, 139283820), (3, 92855880), (4, 69641910), (5, 55713528), (6, 46427940), (8, 34820955), (9, 30951960), (10, 27856764), (12, 23213970), (13, 21428280), (15, 18571176), (18, 15475980), (20, 13928382), (24, 11606985), (26, 10714140), (27, 10317320), (30, 9285588), (36, 7737990), (39, 7142760), (40, 6964191), (45, 6190392), (52, 5357070), (54, 5158660), (60, 4642794), (65, 4285656), (72, 3868995), (78, 3571380), (90, 3095196), (104, 2678535), (108, 2579330), (117, 2380920), (120, 2321397), (130, 2142828), (135, 2063464), (156, 1785690), (180, 1547598), (195, 1428552), (216, 1289665), (234, 1190460), (260, 1071414), (270, 1031732), (312, 892845), (351, 793640), (360, 773799), (390, 714276), (468, 595230), (520, 535707), (540, 515866), (585, 476184), (702, 396820), (780, 357138), (936, 297615), (1080, 257933), (1170, 238092), (1404, 198410), (1560, 178569), (1755, 158728), (2340, 119046), (2808, 99205), (3510, 79364), (4680, 59523), (7020, 39682), (14040, 19841)]