20408430

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{619}}^1$

素因数の和:793

約数の個数: 64

約数和(自身を含む): 56424960

約数和(自身を除く): 36016530

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 157, 210, 314, 471, 619, 785, 942, 1099, 1238, 1570, 1857, 2198, 2355, 3095, 3297, 3714, 4333, 4710, 5495, 6190, 6594, 8666, 9285, 10990, 12999, 16485, 18570, 21665, 25998, 32970, 43330, 64995, 97183, 129990, 194366, 291549, 485915, 583098, 680281, 971830, 1360562, 1457745, 2040843, 2915490, 3401405, 4081686, 6802810, 10204215, 20408430]

約数ペア:

[(1, 20408430), (2, 10204215), (3, 6802810), (5, 4081686), (6, 3401405), (7, 2915490), (10, 2040843), (14, 1457745), (15, 1360562), (21, 971830), (30, 680281), (35, 583098), (42, 485915), (70, 291549), (105, 194366), (157, 129990), (210, 97183), (314, 64995), (471, 43330), (619, 32970), (785, 25998), (942, 21665), (1099, 18570), (1238, 16485), (1570, 12999), (1857, 10990), (2198, 9285), (2355, 8666), (3095, 6594), (3297, 6190), (3714, 5495), (4333, 4710)]