18775820

素因数分解:

$2^2\times 5^1\times 7^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:77

約数の個数: 120

約数和(自身を含む): 50821344

約数和(自身を除く): 32045524

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 23, 28, 34, 35, 46, 49, 68, 70, 85, 92, 98, 115, 119, 140, 161, 170, 196, 230, 238, 245, 322, 340, 343, 391, 460, 476, 490, 595, 644, 686, 782, 805, 833, 980, 1127, 1190, 1372, 1564, 1610, 1666, 1715, 1955, 2254, 2380, 2401, 2737, 3220, 3332, 3430, 3910, 4165, 4508, 4802, 5474, 5635, 5831, 6860, 7820, 7889, 8330, 9604, 10948, 11270, 11662, 12005, 13685, 15778, 16660, 19159, 22540, 23324, 24010, 27370, 29155, 31556, 38318, 39445, 40817, 48020, 54740, 55223, 58310, 76636, 78890, 81634, 95795, 110446, 116620, 134113, 157780, 163268, 191590, 204085, 220892, 268226, 276115, 383180, 408170, 536452, 552230, 670565, 816340, 938791, 1104460, 1341130, 1877582, 2682260, 3755164, 4693955, 9387910, 18775820]

約数ペア:

[(1, 18775820), (2, 9387910), (4, 4693955), (5, 3755164), (7, 2682260), (10, 1877582), (14, 1341130), (17, 1104460), (20, 938791), (23, 816340), (28, 670565), (34, 552230), (35, 536452), (46, 408170), (49, 383180), (68, 276115), (70, 268226), (85, 220892), (92, 204085), (98, 191590), (115, 163268), (119, 157780), (140, 134113), (161, 116620), (170, 110446), (196, 95795), (230, 81634), (238, 78890), (245, 76636), (322, 58310), (340, 55223), (343, 54740), (391, 48020), (460, 40817), (476, 39445), (490, 38318), (595, 31556), (644, 29155), (686, 27370), (782, 24010), (805, 23324), (833, 22540), (980, 19159), (1127, 16660), (1190, 15778), (1372, 13685), (1564, 12005), (1610, 11662), (1666, 11270), (1715, 10948), (1955, 9604), (2254, 8330), (2380, 7889), (2401, 7820), (2737, 6860), (3220, 5831), (3332, 5635), (3430, 5474), (3910, 4802), (4165, 4508)]