21637920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{739}}^1$

素因数の和:818

約数の個数: 96

約数和(自身を含む): 69370560

約数和(自身を除く): 47732640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 80, 96, 120, 122, 160, 183, 240, 244, 305, 366, 480, 488, 610, 732, 739, 915, 976, 1220, 1464, 1478, 1830, 1952, 2217, 2440, 2928, 2956, 3660, 3695, 4434, 4880, 5856, 5912, 7320, 7390, 8868, 9760, 11085, 11824, 14640, 14780, 17736, 22170, 23648, 29280, 29560, 35472, 44340, 45079, 59120, 70944, 88680, 90158, 118240, 135237, 177360, 180316, 225395, 270474, 354720, 360632, 450790, 540948, 676185, 721264, 901580, 1081896, 1352370, 1442528, 1803160, 2163792, 2704740, 3606320, 4327584, 5409480, 7212640, 10818960, 21637920]

約数ペア:

[(1, 21637920), (2, 10818960), (3, 7212640), (4, 5409480), (5, 4327584), (6, 3606320), (8, 2704740), (10, 2163792), (12, 1803160), (15, 1442528), (16, 1352370), (20, 1081896), (24, 901580), (30, 721264), (32, 676185), (40, 540948), (48, 450790), (60, 360632), (61, 354720), (80, 270474), (96, 225395), (120, 180316), (122, 177360), (160, 135237), (183, 118240), (240, 90158), (244, 88680), (305, 70944), (366, 59120), (480, 45079), (488, 44340), (610, 35472), (732, 29560), (739, 29280), (915, 23648), (976, 22170), (1220, 17736), (1464, 14780), (1478, 14640), (1830, 11824), (1952, 11085), (2217, 9760), (2440, 8868), (2928, 7390), (2956, 7320), (3660, 5912), (3695, 5856), (4434, 4880)]