101999920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3739}}^1$

素因数の和:3794

約数の個数: 80

約数和(自身を含む): 267125760

約数和(自身を除く): 165125840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 3410, 3739, 5456, 6820, 7478, 13640, 14956, 18695, 27280, 29912, 37390, 41129, 59824, 74780, 82258, 115909, 149560, 164516, 205645, 231818, 299120, 329032, 411290, 463636, 579545, 658064, 822580, 927272, 1159090, 1274999, 1645160, 1854544, 2318180, 2549998, 3290320, 4636360, 5099996, 6374995, 9272720, 10199992, 12749990, 20399984, 25499980, 50999960, 101999920]

約数ペア:

[(1, 101999920), (2, 50999960), (4, 25499980), (5, 20399984), (8, 12749990), (10, 10199992), (11, 9272720), (16, 6374995), (20, 5099996), (22, 4636360), (31, 3290320), (40, 2549998), (44, 2318180), (55, 1854544), (62, 1645160), (80, 1274999), (88, 1159090), (110, 927272), (124, 822580), (155, 658064), (176, 579545), (220, 463636), (248, 411290), (310, 329032), (341, 299120), (440, 231818), (496, 205645), (620, 164516), (682, 149560), (880, 115909), (1240, 82258), (1364, 74780), (1705, 59824), (2480, 41129), (2728, 37390), (3410, 29912), (3739, 27280), (5456, 18695), (6820, 14956), (7478, 13640)]