21378720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4049}}^1$

素因数の和:4078

約数の個数: 96

約数和(自身を含む): 73483200

約数和(自身を除く): 52104480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 132, 160, 165, 176, 220, 240, 264, 330, 352, 440, 480, 528, 660, 880, 1056, 1320, 1760, 2640, 4049, 5280, 8098, 12147, 16196, 20245, 24294, 32392, 40490, 44539, 48588, 60735, 64784, 80980, 89078, 97176, 121470, 129568, 133617, 161960, 178156, 194352, 222695, 242940, 267234, 323920, 356312, 388704, 445390, 485880, 534468, 647840, 668085, 712624, 890780, 971760, 1068936, 1336170, 1425248, 1781560, 1943520, 2137872, 2672340, 3563120, 4275744, 5344680, 7126240, 10689360, 21378720]

約数ペア:

[(1, 21378720), (2, 10689360), (3, 7126240), (4, 5344680), (5, 4275744), (6, 3563120), (8, 2672340), (10, 2137872), (11, 1943520), (12, 1781560), (15, 1425248), (16, 1336170), (20, 1068936), (22, 971760), (24, 890780), (30, 712624), (32, 668085), (33, 647840), (40, 534468), (44, 485880), (48, 445390), (55, 388704), (60, 356312), (66, 323920), (80, 267234), (88, 242940), (96, 222695), (110, 194352), (120, 178156), (132, 161960), (160, 133617), (165, 129568), (176, 121470), (220, 97176), (240, 89078), (264, 80980), (330, 64784), (352, 60735), (440, 48588), (480, 44539), (528, 40490), (660, 32392), (880, 24294), (1056, 20245), (1320, 16196), (1760, 12147), (2640, 8098), (4049, 5280)]