1389518280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{18121}}^1$

素因数の和:18212

約数の個数: 128

約数和(自身を含む): 4697222400

約数和(自身を除く): 3307704120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 71, 72, 90, 108, 120, 135, 142, 180, 213, 216, 270, 284, 355, 360, 426, 540, 568, 639, 710, 852, 1065, 1080, 1278, 1420, 1704, 1917, 2130, 2556, 2840, 3195, 3834, 4260, 5112, 6390, 7668, 8520, 9585, 12780, 15336, 18121, 19170, 25560, 36242, 38340, 54363, 72484, 76680, 90605, 108726, 144968, 163089, 181210, 217452, 271815, 326178, 362420, 434904, 489267, 543630, 652356, 724840, 815445, 978534, 1087260, 1286591, 1304712, 1630890, 1957068, 2174520, 2446335, 2573182, 3261780, 3859773, 3914136, 4892670, 5146364, 6432955, 6523560, 7719546, 9785340, 10292728, 11579319, 12865910, 15439092, 19298865, 19570680, 23158638, 25731820, 30878184, 34737957, 38597730, 46317276, 51463640, 57896595, 69475914, 77195460, 92634552, 115793190, 138951828, 154390920, 173689785, 231586380, 277903656, 347379570, 463172760, 694759140, 1389518280]

約数ペア:

[(1, 1389518280), (2, 694759140), (3, 463172760), (4, 347379570), (5, 277903656), (6, 231586380), (8, 173689785), (9, 154390920), (10, 138951828), (12, 115793190), (15, 92634552), (18, 77195460), (20, 69475914), (24, 57896595), (27, 51463640), (30, 46317276), (36, 38597730), (40, 34737957), (45, 30878184), (54, 25731820), (60, 23158638), (71, 19570680), (72, 19298865), (90, 15439092), (108, 12865910), (120, 11579319), (135, 10292728), (142, 9785340), (180, 7719546), (213, 6523560), (216, 6432955), (270, 5146364), (284, 4892670), (355, 3914136), (360, 3859773), (426, 3261780), (540, 2573182), (568, 2446335), (639, 2174520), (710, 1957068), (852, 1630890), (1065, 1304712), (1080, 1286591), (1278, 1087260), (1420, 978534), (1704, 815445), (1917, 724840), (2130, 652356), (2556, 543630), (2840, 489267), (3195, 434904), (3834, 362420), (4260, 326178), (5112, 271815), (6390, 217452), (7668, 181210), (8520, 163089), (9585, 144968), (12780, 108726), (15336, 90605), (18121, 76680), (19170, 72484), (25560, 54363), (36242, 38340)]