16281920

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:148

約数の個数: 112

約数和(自身を含む): 42629328

約数和(自身を除く): 26347408

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 41, 64, 68, 73, 80, 82, 85, 136, 146, 160, 164, 170, 205, 272, 292, 320, 328, 340, 365, 410, 544, 584, 656, 680, 697, 730, 820, 1088, 1168, 1241, 1312, 1360, 1394, 1460, 1640, 2336, 2482, 2624, 2720, 2788, 2920, 2993, 3280, 3485, 4672, 4964, 5440, 5576, 5840, 5986, 6205, 6560, 6970, 9928, 11152, 11680, 11972, 12410, 13120, 13940, 14965, 19856, 22304, 23360, 23944, 24820, 27880, 29930, 39712, 44608, 47888, 49640, 50881, 55760, 59860, 79424, 95776, 99280, 101762, 111520, 119720, 191552, 198560, 203524, 223040, 239440, 254405, 397120, 407048, 478880, 508810, 814096, 957760, 1017620, 1628192, 2035240, 3256384, 4070480, 8140960, 16281920]

約数ペア:

[(1, 16281920), (2, 8140960), (4, 4070480), (5, 3256384), (8, 2035240), (10, 1628192), (16, 1017620), (17, 957760), (20, 814096), (32, 508810), (34, 478880), (40, 407048), (41, 397120), (64, 254405), (68, 239440), (73, 223040), (80, 203524), (82, 198560), (85, 191552), (136, 119720), (146, 111520), (160, 101762), (164, 99280), (170, 95776), (205, 79424), (272, 59860), (292, 55760), (320, 50881), (328, 49640), (340, 47888), (365, 44608), (410, 39712), (544, 29930), (584, 27880), (656, 24820), (680, 23944), (697, 23360), (730, 22304), (820, 19856), (1088, 14965), (1168, 13940), (1241, 13120), (1312, 12410), (1360, 11972), (1394, 11680), (1460, 11152), (1640, 9928), (2336, 6970), (2482, 6560), (2624, 6205), (2720, 5986), (2788, 5840), (2920, 5576), (2993, 5440), (3280, 4964), (3485, 4672)]