78428820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{4523}}^1$

素因数の和:4569

約数の個数: 72

約数和(自身を含む): 233329824

約数和(自身を除く): 154901004

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 289, 340, 510, 578, 867, 1020, 1156, 1445, 1734, 2890, 3468, 4335, 4523, 5780, 8670, 9046, 13569, 17340, 18092, 22615, 27138, 45230, 54276, 67845, 76891, 90460, 135690, 153782, 230673, 271380, 307564, 384455, 461346, 768910, 922692, 1153365, 1307147, 1537820, 2306730, 2614294, 3921441, 4613460, 5228588, 6535735, 7842882, 13071470, 15685764, 19607205, 26142940, 39214410, 78428820]

約数ペア:

[(1, 78428820), (2, 39214410), (3, 26142940), (4, 19607205), (5, 15685764), (6, 13071470), (10, 7842882), (12, 6535735), (15, 5228588), (17, 4613460), (20, 3921441), (30, 2614294), (34, 2306730), (51, 1537820), (60, 1307147), (68, 1153365), (85, 922692), (102, 768910), (170, 461346), (204, 384455), (255, 307564), (289, 271380), (340, 230673), (510, 153782), (578, 135690), (867, 90460), (1020, 76891), (1156, 67845), (1445, 54276), (1734, 45230), (2890, 27138), (3468, 22615), (4335, 18092), (4523, 17340), (5780, 13569), (8670, 9046)]