1681162240

素因数分解:

$2^{15}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:397

約数の個数: 128

約数和(自身を含む): 4177463040

約数和(自身を除く): 2496300800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 331, 496, 512, 620, 640, 662, 992, 1024, 1240, 1280, 1324, 1655, 1984, 2048, 2480, 2560, 2648, 3310, 3968, 4096, 4960, 5120, 5296, 6620, 7936, 8192, 9920, 10240, 10261, 10592, 13240, 15872, 16384, 19840, 20480, 20522, 21184, 26480, 31744, 32768, 39680, 40960, 41044, 42368, 51305, 52960, 63488, 79360, 81920, 82088, 84736, 102610, 105920, 126976, 158720, 163840, 164176, 169472, 205220, 211840, 253952, 317440, 328352, 338944, 410440, 423680, 507904, 634880, 656704, 677888, 820880, 847360, 1015808, 1269760, 1313408, 1355776, 1641760, 1694720, 2539520, 2626816, 2711552, 3283520, 3389440, 5079040, 5253632, 5423104, 6567040, 6778880, 10507264, 10846208, 13134080, 13557760, 21014528, 26268160, 27115520, 42029056, 52536320, 54231040, 84058112, 105072640, 168116224, 210145280, 336232448, 420290560, 840581120, 1681162240]

約数ペア:

[(1, 1681162240), (2, 840581120), (4, 420290560), (5, 336232448), (8, 210145280), (10, 168116224), (16, 105072640), (20, 84058112), (31, 54231040), (32, 52536320), (40, 42029056), (62, 27115520), (64, 26268160), (80, 21014528), (124, 13557760), (128, 13134080), (155, 10846208), (160, 10507264), (248, 6778880), (256, 6567040), (310, 5423104), (320, 5253632), (331, 5079040), (496, 3389440), (512, 3283520), (620, 2711552), (640, 2626816), (662, 2539520), (992, 1694720), (1024, 1641760), (1240, 1355776), (1280, 1313408), (1324, 1269760), (1655, 1015808), (1984, 847360), (2048, 820880), (2480, 677888), (2560, 656704), (2648, 634880), (3310, 507904), (3968, 423680), (4096, 410440), (4960, 338944), (5120, 328352), (5296, 317440), (6620, 253952), (7936, 211840), (8192, 205220), (9920, 169472), (10240, 164176), (10261, 163840), (10592, 158720), (13240, 126976), (15872, 105920), (16384, 102610), (19840, 84736), (20480, 82088), (20522, 81920), (21184, 79360), (26480, 63488), (31744, 52960), (32768, 51305), (39680, 42368), (40960, 41044)]