407298820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{6827}}^1$

素因数の和:7012

約数の個数: 48

約数和(自身を含む): 906212160

約数和(自身を除く): 498913340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 157, 190, 314, 380, 628, 785, 1570, 2983, 3140, 5966, 6827, 11932, 13654, 14915, 27308, 29830, 34135, 59660, 68270, 129713, 136540, 259426, 518852, 648565, 1071839, 1297130, 2143678, 2594260, 4287356, 5359195, 10718390, 20364941, 21436780, 40729882, 81459764, 101824705, 203649410, 407298820]

約数ペア:

[(1, 407298820), (2, 203649410), (4, 101824705), (5, 81459764), (10, 40729882), (19, 21436780), (20, 20364941), (38, 10718390), (76, 5359195), (95, 4287356), (157, 2594260), (190, 2143678), (314, 1297130), (380, 1071839), (628, 648565), (785, 518852), (1570, 259426), (2983, 136540), (3140, 129713), (5966, 68270), (6827, 59660), (11932, 34135), (13654, 29830), (14915, 27308)]