721361880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{87121}}^1$

素因数の和:87161

約数の個数: 96

約数和(自身を含む): 2446385760

約数和(自身を除く): 1725023880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 180, 184, 207, 230, 276, 345, 360, 414, 460, 552, 690, 828, 920, 1035, 1380, 1656, 2070, 2760, 4140, 8280, 87121, 174242, 261363, 348484, 435605, 522726, 696968, 784089, 871210, 1045452, 1306815, 1568178, 1742420, 2003783, 2090904, 2613630, 3136356, 3484840, 3920445, 4007566, 5227260, 6011349, 6272712, 7840890, 8015132, 10018915, 10454520, 12022698, 15681780, 16030264, 18034047, 20037830, 24045396, 30056745, 31363560, 36068094, 40075660, 48090792, 60113490, 72136188, 80151320, 90170235, 120226980, 144272376, 180340470, 240453960, 360680940, 721361880]

約数ペア:

[(1, 721361880), (2, 360680940), (3, 240453960), (4, 180340470), (5, 144272376), (6, 120226980), (8, 90170235), (9, 80151320), (10, 72136188), (12, 60113490), (15, 48090792), (18, 40075660), (20, 36068094), (23, 31363560), (24, 30056745), (30, 24045396), (36, 20037830), (40, 18034047), (45, 16030264), (46, 15681780), (60, 12022698), (69, 10454520), (72, 10018915), (90, 8015132), (92, 7840890), (115, 6272712), (120, 6011349), (138, 5227260), (180, 4007566), (184, 3920445), (207, 3484840), (230, 3136356), (276, 2613630), (345, 2090904), (360, 2003783), (414, 1742420), (460, 1568178), (552, 1306815), (690, 1045452), (828, 871210), (920, 784089), (1035, 696968), (1380, 522726), (1656, 435605), (2070, 348484), (2760, 261363), (4140, 174242), (8280, 87121)]