80318940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{89}}^2$

素因数の和:216

約数の個数: 108

約数和(自身を含む): 246290184

約数和(自身を除く): 165971244

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 89, 130, 156, 169, 178, 195, 260, 267, 338, 356, 390, 445, 507, 534, 676, 780, 845, 890, 1014, 1068, 1157, 1335, 1690, 1780, 2028, 2314, 2535, 2670, 3380, 3471, 4628, 5070, 5340, 5785, 6942, 7921, 10140, 11570, 13884, 15041, 15842, 17355, 23140, 23763, 30082, 31684, 34710, 39605, 45123, 47526, 60164, 69420, 75205, 79210, 90246, 95052, 102973, 118815, 150410, 158420, 180492, 205946, 225615, 237630, 300820, 308919, 411892, 451230, 475260, 514865, 617838, 902460, 1029730, 1235676, 1338649, 1544595, 2059460, 2677298, 3089190, 4015947, 5354596, 6178380, 6693245, 8031894, 13386490, 16063788, 20079735, 26772980, 40159470, 80318940]

約数ペア:

[(1, 80318940), (2, 40159470), (3, 26772980), (4, 20079735), (5, 16063788), (6, 13386490), (10, 8031894), (12, 6693245), (13, 6178380), (15, 5354596), (20, 4015947), (26, 3089190), (30, 2677298), (39, 2059460), (52, 1544595), (60, 1338649), (65, 1235676), (78, 1029730), (89, 902460), (130, 617838), (156, 514865), (169, 475260), (178, 451230), (195, 411892), (260, 308919), (267, 300820), (338, 237630), (356, 225615), (390, 205946), (445, 180492), (507, 158420), (534, 150410), (676, 118815), (780, 102973), (845, 95052), (890, 90246), (1014, 79210), (1068, 75205), (1157, 69420), (1335, 60164), (1690, 47526), (1780, 45123), (2028, 39605), (2314, 34710), (2535, 31684), (2670, 30082), (3380, 23763), (3471, 23140), (4628, 17355), (5070, 15842), (5340, 15041), (5785, 13884), (6942, 11570), (7921, 10140)]