172421940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{107}}^2\times {\mathrm{251}}^1$

素因数の和:477

約数の個数: 72

約数和(自身を含む): 489277152

約数和(自身を除く): 316855212

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 107, 214, 251, 321, 428, 502, 535, 642, 753, 1004, 1070, 1255, 1284, 1506, 1605, 2140, 2510, 3012, 3210, 3765, 5020, 6420, 7530, 11449, 15060, 22898, 26857, 34347, 45796, 53714, 57245, 68694, 80571, 107428, 114490, 134285, 137388, 161142, 171735, 228980, 268570, 322284, 343470, 402855, 537140, 686940, 805710, 1611420, 2873699, 5747398, 8621097, 11494796, 14368495, 17242194, 28736990, 34484388, 43105485, 57473980, 86210970, 172421940]

約数ペア:

[(1, 172421940), (2, 86210970), (3, 57473980), (4, 43105485), (5, 34484388), (6, 28736990), (10, 17242194), (12, 14368495), (15, 11494796), (20, 8621097), (30, 5747398), (60, 2873699), (107, 1611420), (214, 805710), (251, 686940), (321, 537140), (428, 402855), (502, 343470), (535, 322284), (642, 268570), (753, 228980), (1004, 171735), (1070, 161142), (1255, 137388), (1284, 134285), (1506, 114490), (1605, 107428), (2140, 80571), (2510, 68694), (3012, 57245), (3210, 53714), (3765, 45796), (5020, 34347), (6420, 26857), (7530, 22898), (11449, 15060)]