1318816520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{59621}}^1$

素因数の和:59718

約数の個数: 64

約数和(自身を含む): 3434227200

約数和(自身を除く): 2115410680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 553, 632, 790, 1106, 1580, 2212, 2765, 3160, 4424, 5530, 11060, 22120, 59621, 119242, 238484, 298105, 417347, 476968, 596210, 834694, 1192420, 1669388, 2086735, 2384840, 3338776, 4173470, 4710059, 8346940, 9420118, 16693880, 18840236, 23550295, 32970413, 37680472, 47100590, 65940826, 94201180, 131881652, 164852065, 188402360, 263763304, 329704130, 659408260, 1318816520]

約数ペア:

[(1, 1318816520), (2, 659408260), (4, 329704130), (5, 263763304), (7, 188402360), (8, 164852065), (10, 131881652), (14, 94201180), (20, 65940826), (28, 47100590), (35, 37680472), (40, 32970413), (56, 23550295), (70, 18840236), (79, 16693880), (140, 9420118), (158, 8346940), (280, 4710059), (316, 4173470), (395, 3338776), (553, 2384840), (632, 2086735), (790, 1669388), (1106, 1192420), (1580, 834694), (2212, 596210), (2765, 476968), (3160, 417347), (4424, 298105), (5530, 238484), (11060, 119242), (22120, 59621)]