123511960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{151}}^1$

素因数の和:210

約数の個数: 144

約数和(自身を含む): 332957520

約数和(自身を除く): 209445560

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 121, 130, 143, 151, 169, 220, 242, 260, 286, 302, 338, 440, 484, 520, 572, 604, 605, 676, 715, 755, 845, 968, 1144, 1208, 1210, 1352, 1430, 1510, 1573, 1661, 1690, 1859, 1963, 2420, 2860, 3020, 3146, 3322, 3380, 3718, 3926, 4840, 5720, 6040, 6292, 6644, 6760, 7436, 7852, 7865, 8305, 9295, 9815, 12584, 13288, 14872, 15704, 15730, 16610, 18271, 18590, 19630, 20449, 21593, 25519, 31460, 33220, 36542, 37180, 39260, 40898, 43186, 51038, 62920, 66440, 73084, 74360, 78520, 81796, 86372, 91355, 102076, 102245, 107965, 127595, 146168, 163592, 172744, 182710, 204152, 204490, 215930, 237523, 255190, 280709, 365420, 408980, 431860, 475046, 510380, 561418, 730840, 817960, 863720, 950092, 1020760, 1122836, 1187615, 1403545, 1900184, 2245672, 2375230, 2807090, 3087799, 4750460, 5614180, 6175598, 9500920, 11228360, 12351196, 15438995, 24702392, 30877990, 61755980, 123511960]

約数ペア:

[(1, 123511960), (2, 61755980), (4, 30877990), (5, 24702392), (8, 15438995), (10, 12351196), (11, 11228360), (13, 9500920), (20, 6175598), (22, 5614180), (26, 4750460), (40, 3087799), (44, 2807090), (52, 2375230), (55, 2245672), (65, 1900184), (88, 1403545), (104, 1187615), (110, 1122836), (121, 1020760), (130, 950092), (143, 863720), (151, 817960), (169, 730840), (220, 561418), (242, 510380), (260, 475046), (286, 431860), (302, 408980), (338, 365420), (440, 280709), (484, 255190), (520, 237523), (572, 215930), (604, 204490), (605, 204152), (676, 182710), (715, 172744), (755, 163592), (845, 146168), (968, 127595), (1144, 107965), (1208, 102245), (1210, 102076), (1352, 91355), (1430, 86372), (1510, 81796), (1573, 78520), (1661, 74360), (1690, 73084), (1859, 66440), (1963, 62920), (2420, 51038), (2860, 43186), (3020, 40898), (3146, 39260), (3322, 37180), (3380, 36542), (3718, 33220), (3926, 31460), (4840, 25519), (5720, 21593), (6040, 20449), (6292, 19630), (6644, 18590), (6760, 18271), (7436, 16610), (7852, 15730), (7865, 15704), (8305, 14872), (9295, 13288), (9815, 12584)]