2019162820

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{641}}^1\times {\mathrm{659}}^1$

素因数の和:1548

約数の個数: 48

約数和(自身を含む): 4271097600

約数和(自身を除く): 2251934780

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 641, 659, 956, 1195, 1282, 1318, 2390, 2564, 2636, 3205, 3295, 4780, 6410, 6590, 12820, 13180, 153199, 157501, 306398, 315002, 422419, 612796, 630004, 765995, 787505, 844838, 1531990, 1575010, 1689676, 2112095, 3063980, 3150020, 4224190, 8448380, 100958141, 201916282, 403832564, 504790705, 1009581410, 2019162820]

約数ペア:

[(1, 2019162820), (2, 1009581410), (4, 504790705), (5, 403832564), (10, 201916282), (20, 100958141), (239, 8448380), (478, 4224190), (641, 3150020), (659, 3063980), (956, 2112095), (1195, 1689676), (1282, 1575010), (1318, 1531990), (2390, 844838), (2564, 787505), (2636, 765995), (3205, 630004), (3295, 612796), (4780, 422419), (6410, 315002), (6590, 306398), (12820, 157501), (13180, 153199)]