30891900

素因数分解:

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

素因数の和:208

約数の個数: 108

約数和(自身を含む): 97349672

約数和(自身を除く): 66457772

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 89, 100, 130, 150, 156, 178, 195, 260, 267, 300, 325, 356, 390, 445, 534, 650, 780, 890, 975, 1068, 1157, 1300, 1335, 1780, 1950, 2225, 2314, 2670, 3471, 3900, 4450, 4628, 5340, 5785, 6675, 6942, 7921, 8900, 11570, 13350, 13884, 15842, 17355, 23140, 23763, 26700, 28925, 31684, 34710, 39605, 47526, 57850, 69420, 79210, 86775, 95052, 102973, 115700, 118815, 158420, 173550, 198025, 205946, 237630, 308919, 347100, 396050, 411892, 475260, 514865, 594075, 617838, 792100, 1029730, 1188150, 1235676, 1544595, 2059460, 2376300, 2574325, 3089190, 5148650, 6178380, 7722975, 10297300, 15445950, 30891900]

約数ペア:

[(1, 30891900), (2, 15445950), (3, 10297300), (4, 7722975), (5, 6178380), (6, 5148650), (10, 3089190), (12, 2574325), (13, 2376300), (15, 2059460), (20, 1544595), (25, 1235676), (26, 1188150), (30, 1029730), (39, 792100), (50, 617838), (52, 594075), (60, 514865), (65, 475260), (75, 411892), (78, 396050), (89, 347100), (100, 308919), (130, 237630), (150, 205946), (156, 198025), (178, 173550), (195, 158420), (260, 118815), (267, 115700), (300, 102973), (325, 95052), (356, 86775), (390, 79210), (445, 69420), (534, 57850), (650, 47526), (780, 39605), (890, 34710), (975, 31684), (1068, 28925), (1157, 26700), (1300, 23763), (1335, 23140), (1780, 17355), (1950, 15842), (2225, 13884), (2314, 13350), (2670, 11570), (3471, 8900), (3900, 7921), (4450, 6942), (4628, 6675), (5340, 5785)]