80218240

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:210

約数の個数: 128

約数和(自身を含む): 207871920

約数和(自身を除く): 127653680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 73, 80, 85, 101, 128, 136, 146, 160, 170, 202, 272, 292, 320, 340, 365, 404, 505, 544, 584, 640, 680, 730, 808, 1010, 1088, 1168, 1241, 1360, 1460, 1616, 1717, 2020, 2176, 2336, 2482, 2720, 2920, 3232, 3434, 4040, 4672, 4964, 5440, 5840, 6205, 6464, 6868, 7373, 8080, 8585, 9344, 9928, 10880, 11680, 12410, 12928, 13736, 14746, 16160, 17170, 19856, 23360, 24820, 27472, 29492, 32320, 34340, 36865, 39712, 46720, 49640, 54944, 58984, 64640, 68680, 73730, 79424, 99280, 109888, 117968, 125341, 137360, 147460, 158848, 198560, 219776, 235936, 250682, 274720, 294920, 397120, 471872, 501364, 549440, 589840, 626705, 794240, 943744, 1002728, 1098880, 1179680, 1253410, 2005456, 2359360, 2506820, 4010912, 4718720, 5013640, 8021824, 10027280, 16043648, 20054560, 40109120, 80218240]

約数ペア:

[(1, 80218240), (2, 40109120), (4, 20054560), (5, 16043648), (8, 10027280), (10, 8021824), (16, 5013640), (17, 4718720), (20, 4010912), (32, 2506820), (34, 2359360), (40, 2005456), (64, 1253410), (68, 1179680), (73, 1098880), (80, 1002728), (85, 943744), (101, 794240), (128, 626705), (136, 589840), (146, 549440), (160, 501364), (170, 471872), (202, 397120), (272, 294920), (292, 274720), (320, 250682), (340, 235936), (365, 219776), (404, 198560), (505, 158848), (544, 147460), (584, 137360), (640, 125341), (680, 117968), (730, 109888), (808, 99280), (1010, 79424), (1088, 73730), (1168, 68680), (1241, 64640), (1360, 58984), (1460, 54944), (1616, 49640), (1717, 46720), (2020, 39712), (2176, 36865), (2336, 34340), (2482, 32320), (2720, 29492), (2920, 27472), (3232, 24820), (3434, 23360), (4040, 19856), (4672, 17170), (4964, 16160), (5440, 14746), (5840, 13736), (6205, 12928), (6464, 12410), (6868, 11680), (7373, 10880), (8080, 9928), (8585, 9344)]