30886875

素因数分解:

$3^2\times 5^4\times {\mathrm{17}}^2\times {\mathrm{19}}^1$

素因数の和:79

約数の個数: 90

約数和(自身を含む): 62339420

約数和(自身を除く): 31452545

約数列:

[1, 3, 5, 9, 15, 17, 19, 25, 45, 51, 57, 75, 85, 95, 125, 153, 171, 225, 255, 285, 289, 323, 375, 425, 475, 625, 765, 855, 867, 969, 1125, 1275, 1425, 1445, 1615, 1875, 2125, 2375, 2601, 2907, 3825, 4275, 4335, 4845, 5491, 5625, 6375, 7125, 7225, 8075, 10625, 11875, 13005, 14535, 16473, 19125, 21375, 21675, 24225, 27455, 31875, 35625, 36125, 40375, 49419, 65025, 72675, 82365, 95625, 106875, 108375, 121125, 137275, 180625, 201875, 247095, 325125, 363375, 411825, 541875, 605625, 686375, 1235475, 1625625, 1816875, 2059125, 3431875, 6177375, 10295625, 30886875]

約数ペア:

[(1, 30886875), (3, 10295625), (5, 6177375), (9, 3431875), (15, 2059125), (17, 1816875), (19, 1625625), (25, 1235475), (45, 686375), (51, 605625), (57, 541875), (75, 411825), (85, 363375), (95, 325125), (125, 247095), (153, 201875), (171, 180625), (225, 137275), (255, 121125), (285, 108375), (289, 106875), (323, 95625), (375, 82365), (425, 72675), (475, 65025), (625, 49419), (765, 40375), (855, 36125), (867, 35625), (969, 31875), (1125, 27455), (1275, 24225), (1425, 21675), (1445, 21375), (1615, 19125), (1875, 16473), (2125, 14535), (2375, 13005), (2601, 11875), (2907, 10625), (3825, 8075), (4275, 7225), (4335, 7125), (4845, 6375), (5491, 5625)]