30831780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{10487}}^1$

素因数の和:10513

約数の個数: 72

約数和(自身を含む): 100433088

約数和(自身を除く): 69601308

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 10487, 20974, 31461, 41948, 52435, 62922, 73409, 104870, 125844, 146818, 157305, 209740, 220227, 293636, 314610, 367045, 440454, 513863, 629220, 734090, 880908, 1027726, 1101135, 1468180, 1541589, 2055452, 2202270, 2569315, 3083178, 4404540, 5138630, 6166356, 7707945, 10277260, 15415890, 30831780]

約数ペア:

[(1, 30831780), (2, 15415890), (3, 10277260), (4, 7707945), (5, 6166356), (6, 5138630), (7, 4404540), (10, 3083178), (12, 2569315), (14, 2202270), (15, 2055452), (20, 1541589), (21, 1468180), (28, 1101135), (30, 1027726), (35, 880908), (42, 734090), (49, 629220), (60, 513863), (70, 440454), (84, 367045), (98, 314610), (105, 293636), (140, 220227), (147, 209740), (196, 157305), (210, 146818), (245, 125844), (294, 104870), (420, 73409), (490, 62922), (588, 52435), (735, 41948), (980, 31461), (1470, 20974), (2940, 10487)]