311331340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{9871}}^1$

素因数の和:9982

約数の個数: 48

約数和(自身を含む): 696568320

約数和(自身を除く): 385236980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 83, 95, 166, 190, 332, 380, 415, 830, 1577, 1660, 3154, 6308, 7885, 9871, 15770, 19742, 31540, 39484, 49355, 98710, 187549, 197420, 375098, 750196, 819293, 937745, 1638586, 1875490, 3277172, 3750980, 4096465, 8192930, 15566567, 16385860, 31133134, 62266268, 77832835, 155665670, 311331340]

約数ペア:

[(1, 311331340), (2, 155665670), (4, 77832835), (5, 62266268), (10, 31133134), (19, 16385860), (20, 15566567), (38, 8192930), (76, 4096465), (83, 3750980), (95, 3277172), (166, 1875490), (190, 1638586), (332, 937745), (380, 819293), (415, 750196), (830, 375098), (1577, 197420), (1660, 187549), (3154, 98710), (6308, 49355), (7885, 39484), (9871, 31540), (15770, 19742)]