31193980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3989}}^1$

素因数の和:4038

約数の個数: 48

約数和(自身を含む): 72394560

約数和(自身を除く): 41200580

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 3910, 3989, 7820, 7978, 15956, 19945, 39890, 67813, 79780, 91747, 135626, 183494, 271252, 339065, 366988, 458735, 678130, 917470, 1356260, 1559699, 1834940, 3119398, 6238796, 7798495, 15596990, 31193980]

約数ペア:

[(1, 31193980), (2, 15596990), (4, 7798495), (5, 6238796), (10, 3119398), (17, 1834940), (20, 1559699), (23, 1356260), (34, 917470), (46, 678130), (68, 458735), (85, 366988), (92, 339065), (115, 271252), (170, 183494), (230, 135626), (340, 91747), (391, 79780), (460, 67813), (782, 39890), (1564, 19945), (1955, 15956), (3910, 7978), (3989, 7820)]