21758040

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3181}}^1$

素因数の和:3217

約数の個数: 96

約数和(自身を含む): 74458800

約数和(自身を除く): 52700760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 180, 190, 228, 285, 342, 360, 380, 456, 570, 684, 760, 855, 1140, 1368, 1710, 2280, 3181, 3420, 6362, 6840, 9543, 12724, 15905, 19086, 25448, 28629, 31810, 38172, 47715, 57258, 60439, 63620, 76344, 95430, 114516, 120878, 127240, 143145, 181317, 190860, 229032, 241756, 286290, 302195, 362634, 381720, 483512, 543951, 572580, 604390, 725268, 906585, 1087902, 1145160, 1208780, 1450536, 1813170, 2175804, 2417560, 2719755, 3626340, 4351608, 5439510, 7252680, 10879020, 21758040]

約数ペア:

[(1, 21758040), (2, 10879020), (3, 7252680), (4, 5439510), (5, 4351608), (6, 3626340), (8, 2719755), (9, 2417560), (10, 2175804), (12, 1813170), (15, 1450536), (18, 1208780), (19, 1145160), (20, 1087902), (24, 906585), (30, 725268), (36, 604390), (38, 572580), (40, 543951), (45, 483512), (57, 381720), (60, 362634), (72, 302195), (76, 286290), (90, 241756), (95, 229032), (114, 190860), (120, 181317), (152, 143145), (171, 127240), (180, 120878), (190, 114516), (228, 95430), (285, 76344), (342, 63620), (360, 60439), (380, 57258), (456, 47715), (570, 38172), (684, 31810), (760, 28629), (855, 25448), (1140, 19086), (1368, 15905), (1710, 12724), (2280, 9543), (3181, 6840), (3420, 6362)]