39815920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:314

約数の個数: 80

約数和(自身を含む): 96868800

約数和(自身を除く): 57052880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 61, 80, 82, 122, 164, 199, 205, 244, 305, 328, 398, 410, 488, 610, 656, 796, 820, 976, 995, 1220, 1592, 1640, 1990, 2440, 2501, 3184, 3280, 3980, 4880, 5002, 7960, 8159, 10004, 12139, 12505, 15920, 16318, 20008, 24278, 25010, 32636, 40016, 40795, 48556, 50020, 60695, 65272, 81590, 97112, 100040, 121390, 130544, 163180, 194224, 200080, 242780, 326360, 485560, 497699, 652720, 971120, 995398, 1990796, 2488495, 3981592, 4976990, 7963184, 9953980, 19907960, 39815920]

約数ペア:

[(1, 39815920), (2, 19907960), (4, 9953980), (5, 7963184), (8, 4976990), (10, 3981592), (16, 2488495), (20, 1990796), (40, 995398), (41, 971120), (61, 652720), (80, 497699), (82, 485560), (122, 326360), (164, 242780), (199, 200080), (205, 194224), (244, 163180), (305, 130544), (328, 121390), (398, 100040), (410, 97112), (488, 81590), (610, 65272), (656, 60695), (796, 50020), (820, 48556), (976, 40795), (995, 40016), (1220, 32636), (1592, 25010), (1640, 24278), (1990, 20008), (2440, 16318), (2501, 15920), (3184, 12505), (3280, 12139), (3980, 10004), (4880, 8159), (5002, 7960)]