81743840

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{229}}^1$

素因数の和:364

約数の個数: 96

約数和(自身を含む): 204482880

約数和(自身を除く): 122739040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 97, 115, 160, 184, 194, 229, 230, 368, 388, 458, 460, 485, 736, 776, 916, 920, 970, 1145, 1552, 1832, 1840, 1940, 2231, 2290, 3104, 3664, 3680, 3880, 4462, 4580, 5267, 7328, 7760, 8924, 9160, 10534, 11155, 15520, 17848, 18320, 21068, 22213, 22310, 26335, 35696, 36640, 42136, 44426, 44620, 52670, 71392, 84272, 88852, 89240, 105340, 111065, 168544, 177704, 178480, 210680, 222130, 355408, 356960, 421360, 444260, 510899, 710816, 842720, 888520, 1021798, 1777040, 2043596, 2554495, 3554080, 4087192, 5108990, 8174384, 10217980, 16348768, 20435960, 40871920, 81743840]

約数ペア:

[(1, 81743840), (2, 40871920), (4, 20435960), (5, 16348768), (8, 10217980), (10, 8174384), (16, 5108990), (20, 4087192), (23, 3554080), (32, 2554495), (40, 2043596), (46, 1777040), (80, 1021798), (92, 888520), (97, 842720), (115, 710816), (160, 510899), (184, 444260), (194, 421360), (229, 356960), (230, 355408), (368, 222130), (388, 210680), (458, 178480), (460, 177704), (485, 168544), (736, 111065), (776, 105340), (916, 89240), (920, 88852), (970, 84272), (1145, 71392), (1552, 52670), (1832, 44620), (1840, 44426), (1940, 42136), (2231, 36640), (2290, 35696), (3104, 26335), (3664, 22310), (3680, 22213), (3880, 21068), (4462, 18320), (4580, 17848), (5267, 15520), (7328, 11155), (7760, 10534), (8924, 9160)]