1664786240

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{2011}}^1$

素因数の和:2240

約数の個数: 112

約数和(自身を含む): 4292803200

約数和(自身を除く): 2628016960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 199, 208, 260, 320, 398, 416, 520, 796, 832, 995, 1040, 1592, 1990, 2011, 2080, 2587, 3184, 3980, 4022, 4160, 5174, 6368, 7960, 8044, 10055, 10348, 12736, 12935, 15920, 16088, 20110, 20696, 25870, 26143, 31840, 32176, 40220, 41392, 51740, 52286, 63680, 64352, 80440, 82784, 103480, 104572, 128704, 130715, 160880, 165568, 206960, 209144, 261430, 321760, 400189, 413920, 418288, 522860, 643520, 800378, 827840, 836576, 1045720, 1600756, 1673152, 2000945, 2091440, 3201512, 4001890, 4182880, 5202457, 6403024, 8003780, 8365760, 10404914, 12806048, 16007560, 20809828, 25612096, 26012285, 32015120, 41619656, 52024570, 64030240, 83239312, 104049140, 128060480, 166478624, 208098280, 332957248, 416196560, 832393120, 1664786240]

約数ペア:

[(1, 1664786240), (2, 832393120), (4, 416196560), (5, 332957248), (8, 208098280), (10, 166478624), (13, 128060480), (16, 104049140), (20, 83239312), (26, 64030240), (32, 52024570), (40, 41619656), (52, 32015120), (64, 26012285), (65, 25612096), (80, 20809828), (104, 16007560), (130, 12806048), (160, 10404914), (199, 8365760), (208, 8003780), (260, 6403024), (320, 5202457), (398, 4182880), (416, 4001890), (520, 3201512), (796, 2091440), (832, 2000945), (995, 1673152), (1040, 1600756), (1592, 1045720), (1990, 836576), (2011, 827840), (2080, 800378), (2587, 643520), (3184, 522860), (3980, 418288), (4022, 413920), (4160, 400189), (5174, 321760), (6368, 261430), (7960, 209144), (8044, 206960), (10055, 165568), (10348, 160880), (12736, 130715), (12935, 128704), (15920, 104572), (16088, 103480), (20110, 82784), (20696, 80440), (25870, 64352), (26143, 63680), (31840, 52286), (32176, 51740), (40220, 41392)]