30290020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 65536128

約数和(自身を除く): 35246108

約数列:

[1, 2, 4, 5, 10, 20, 71, 83, 142, 166, 257, 284, 332, 355, 415, 514, 710, 830, 1028, 1285, 1420, 1660, 2570, 5140, 5893, 11786, 18247, 21331, 23572, 29465, 36494, 42662, 58930, 72988, 85324, 91235, 106655, 117860, 182470, 213310, 364940, 426620, 1514501, 3029002, 6058004, 7572505, 15145010, 30290020]

約数ペア:

[(1, 30290020), (2, 15145010), (4, 7572505), (5, 6058004), (10, 3029002), (20, 1514501), (71, 426620), (83, 364940), (142, 213310), (166, 182470), (257, 117860), (284, 106655), (332, 91235), (355, 85324), (415, 72988), (514, 58930), (710, 42662), (830, 36494), (1028, 29465), (1285, 23572), (1420, 21331), (1660, 18247), (2570, 11786), (5140, 5893)]