31478820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{521}}^1$

素因数の和:605

約数の個数: 96

約数和(自身を含む): 94711680

約数和(自身を除く): 63232860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 53, 57, 60, 76, 95, 106, 114, 159, 190, 212, 228, 265, 285, 318, 380, 521, 530, 570, 636, 795, 1007, 1042, 1060, 1140, 1563, 1590, 2014, 2084, 2605, 3021, 3126, 3180, 4028, 5035, 5210, 6042, 6252, 7815, 9899, 10070, 10420, 12084, 15105, 15630, 19798, 20140, 27613, 29697, 30210, 31260, 39596, 49495, 55226, 59394, 60420, 82839, 98990, 110452, 118788, 138065, 148485, 165678, 197980, 276130, 296970, 331356, 414195, 524647, 552260, 593940, 828390, 1049294, 1573941, 1656780, 2098588, 2623235, 3147882, 5246470, 6295764, 7869705, 10492940, 15739410, 31478820]

約数ペア:

[(1, 31478820), (2, 15739410), (3, 10492940), (4, 7869705), (5, 6295764), (6, 5246470), (10, 3147882), (12, 2623235), (15, 2098588), (19, 1656780), (20, 1573941), (30, 1049294), (38, 828390), (53, 593940), (57, 552260), (60, 524647), (76, 414195), (95, 331356), (106, 296970), (114, 276130), (159, 197980), (190, 165678), (212, 148485), (228, 138065), (265, 118788), (285, 110452), (318, 98990), (380, 82839), (521, 60420), (530, 59394), (570, 55226), (636, 49495), (795, 39596), (1007, 31260), (1042, 30210), (1060, 29697), (1140, 27613), (1563, 20140), (1590, 19798), (2014, 15630), (2084, 15105), (2605, 12084), (3021, 10420), (3126, 10070), (3180, 9899), (4028, 7815), (5035, 6252), (5210, 6042)]