19403560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 50752800

約数和(自身を除く): 31349240

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 121, 152, 190, 209, 211, 220, 242, 380, 418, 422, 440, 484, 605, 760, 836, 844, 968, 1045, 1055, 1210, 1672, 1688, 2090, 2110, 2299, 2321, 2420, 4009, 4180, 4220, 4598, 4642, 4840, 8018, 8360, 8440, 9196, 9284, 11495, 11605, 16036, 18392, 18568, 20045, 22990, 23210, 25531, 32072, 40090, 44099, 45980, 46420, 51062, 80180, 88198, 91960, 92840, 102124, 127655, 160360, 176396, 204248, 220495, 255310, 352792, 440990, 485089, 510620, 881980, 970178, 1021240, 1763960, 1940356, 2425445, 3880712, 4850890, 9701780, 19403560]

約数ペア:

[(1, 19403560), (2, 9701780), (4, 4850890), (5, 3880712), (8, 2425445), (10, 1940356), (11, 1763960), (19, 1021240), (20, 970178), (22, 881980), (38, 510620), (40, 485089), (44, 440990), (55, 352792), (76, 255310), (88, 220495), (95, 204248), (110, 176396), (121, 160360), (152, 127655), (190, 102124), (209, 92840), (211, 91960), (220, 88198), (242, 80180), (380, 51062), (418, 46420), (422, 45980), (440, 44099), (484, 40090), (605, 32072), (760, 25531), (836, 23210), (844, 22990), (968, 20045), (1045, 18568), (1055, 18392), (1210, 16036), (1672, 11605), (1688, 11495), (2090, 9284), (2110, 9196), (2299, 8440), (2321, 8360), (2420, 8018), (4009, 4840), (4180, 4642), (4220, 4598)]