20937036100

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{31489}}^1$

素因数の和:31673

約数の個数: 72

約数和(自身を含む): 46603310600

約数和(自身を除く): 25666274500

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 109, 122, 218, 244, 305, 436, 545, 610, 1090, 1220, 1525, 2180, 2725, 3050, 5450, 6100, 6649, 10900, 13298, 26596, 31489, 33245, 62978, 66490, 125956, 132980, 157445, 166225, 314890, 332450, 629780, 664900, 787225, 1574450, 1920829, 3148900, 3432301, 3841658, 6864602, 7683316, 9604145, 13729204, 17161505, 19208290, 34323010, 38416580, 48020725, 68646020, 85807525, 96041450, 171615050, 192082900, 209370361, 343230100, 418740722, 837481444, 1046851805, 2093703610, 4187407220, 5234259025, 10468518050, 20937036100]

約数ペア:

[(1, 20937036100), (2, 10468518050), (4, 5234259025), (5, 4187407220), (10, 2093703610), (20, 1046851805), (25, 837481444), (50, 418740722), (61, 343230100), (100, 209370361), (109, 192082900), (122, 171615050), (218, 96041450), (244, 85807525), (305, 68646020), (436, 48020725), (545, 38416580), (610, 34323010), (1090, 19208290), (1220, 17161505), (1525, 13729204), (2180, 9604145), (2725, 7683316), (3050, 6864602), (5450, 3841658), (6100, 3432301), (6649, 3148900), (10900, 1920829), (13298, 1574450), (26596, 787225), (31489, 664900), (33245, 629780), (62978, 332450), (66490, 314890), (125956, 166225), (132980, 157445)]