395481880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:389

約数の個数: 128

約数和(自身を含む): 989729280

約数和(自身を除く): 594247400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 73, 85, 124, 136, 146, 155, 170, 248, 257, 292, 310, 340, 365, 514, 527, 584, 620, 680, 730, 1028, 1054, 1240, 1241, 1285, 1460, 2056, 2108, 2263, 2482, 2570, 2635, 2920, 4216, 4369, 4526, 4964, 5140, 5270, 6205, 7967, 8738, 9052, 9928, 10280, 10540, 11315, 12410, 15934, 17476, 18104, 18761, 21080, 21845, 22630, 24820, 31868, 34952, 37522, 38471, 39835, 43690, 45260, 49640, 63736, 75044, 76942, 79670, 87380, 90520, 93805, 135439, 150088, 153884, 159340, 174760, 187610, 192355, 270878, 307768, 318680, 318937, 375220, 384710, 541756, 581591, 637874, 677195, 750440, 769420, 1083512, 1163182, 1275748, 1354390, 1538840, 1594685, 2326364, 2551496, 2708780, 2907955, 3189370, 4652728, 5417560, 5815910, 6378740, 9887047, 11631820, 12757480, 19774094, 23263640, 39548188, 49435235, 79096376, 98870470, 197740940, 395481880]

約数ペア:

[(1, 395481880), (2, 197740940), (4, 98870470), (5, 79096376), (8, 49435235), (10, 39548188), (17, 23263640), (20, 19774094), (31, 12757480), (34, 11631820), (40, 9887047), (62, 6378740), (68, 5815910), (73, 5417560), (85, 4652728), (124, 3189370), (136, 2907955), (146, 2708780), (155, 2551496), (170, 2326364), (248, 1594685), (257, 1538840), (292, 1354390), (310, 1275748), (340, 1163182), (365, 1083512), (514, 769420), (527, 750440), (584, 677195), (620, 637874), (680, 581591), (730, 541756), (1028, 384710), (1054, 375220), (1240, 318937), (1241, 318680), (1285, 307768), (1460, 270878), (2056, 192355), (2108, 187610), (2263, 174760), (2482, 159340), (2570, 153884), (2635, 150088), (2920, 135439), (4216, 93805), (4369, 90520), (4526, 87380), (4964, 79670), (5140, 76942), (5270, 75044), (6205, 63736), (7967, 49640), (8738, 45260), (9052, 43690), (9928, 39835), (10280, 38471), (10540, 37522), (11315, 34952), (12410, 31868), (15934, 24820), (17476, 22630), (18104, 21845), (18761, 21080)]