502227280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{647}}^1$

素因数の和:1004

約数の個数: 80

約数和(自身を含む): 1211065344

約数和(自身を除く): 708838064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 313, 496, 620, 626, 647, 1240, 1252, 1294, 1565, 2480, 2504, 2588, 3130, 3235, 5008, 5176, 6260, 6470, 9703, 10352, 12520, 12940, 19406, 20057, 25040, 25880, 38812, 40114, 48515, 51760, 77624, 80228, 97030, 100285, 155248, 160456, 194060, 200570, 202511, 320912, 388120, 401140, 405022, 776240, 802280, 810044, 1012555, 1604560, 1620088, 2025110, 3240176, 4050220, 6277841, 8100440, 12555682, 16200880, 25111364, 31389205, 50222728, 62778410, 100445456, 125556820, 251113640, 502227280]

約数ペア:

[(1, 502227280), (2, 251113640), (4, 125556820), (5, 100445456), (8, 62778410), (10, 50222728), (16, 31389205), (20, 25111364), (31, 16200880), (40, 12555682), (62, 8100440), (80, 6277841), (124, 4050220), (155, 3240176), (248, 2025110), (310, 1620088), (313, 1604560), (496, 1012555), (620, 810044), (626, 802280), (647, 776240), (1240, 405022), (1252, 401140), (1294, 388120), (1565, 320912), (2480, 202511), (2504, 200570), (2588, 194060), (3130, 160456), (3235, 155248), (5008, 100285), (5176, 97030), (6260, 80228), (6470, 77624), (9703, 51760), (10352, 48515), (12520, 40114), (12940, 38812), (19406, 25880), (20057, 25040)]