218361680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{7561}}^1$

素因数の和:7612

約数の個数: 60

約数和(自身を含む): 535888692

約数和(自身を除く): 317527012

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 722, 760, 1444, 1520, 1805, 2888, 3610, 5776, 7220, 7561, 14440, 15122, 28880, 30244, 37805, 60488, 75610, 120976, 143659, 151220, 287318, 302440, 574636, 604880, 718295, 1149272, 1436590, 2298544, 2729521, 2873180, 5459042, 5746360, 10918084, 11492720, 13647605, 21836168, 27295210, 43672336, 54590420, 109180840, 218361680]

約数ペア:

[(1, 218361680), (2, 109180840), (4, 54590420), (5, 43672336), (8, 27295210), (10, 21836168), (16, 13647605), (19, 11492720), (20, 10918084), (38, 5746360), (40, 5459042), (76, 2873180), (80, 2729521), (95, 2298544), (152, 1436590), (190, 1149272), (304, 718295), (361, 604880), (380, 574636), (722, 302440), (760, 287318), (1444, 151220), (1520, 143659), (1805, 120976), (2888, 75610), (3610, 60488), (5776, 37805), (7220, 30244), (7561, 28880), (14440, 15122)]