161987940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{14753}}^1$

素因数の和:14829

約数の個数: 72

約数和(自身を含む): 499452408

約数和(自身を除く): 337464468

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 14753, 29506, 44259, 59012, 73765, 88518, 132777, 147530, 177036, 221295, 265554, 295060, 442590, 531108, 663885, 885180, 899933, 1327770, 1799866, 2655540, 2699799, 3599732, 4499665, 5399598, 8099397, 8999330, 10799196, 13498995, 16198794, 17998660, 26997990, 32397588, 40496985, 53995980, 80993970, 161987940]

約数ペア:

[(1, 161987940), (2, 80993970), (3, 53995980), (4, 40496985), (5, 32397588), (6, 26997990), (9, 17998660), (10, 16198794), (12, 13498995), (15, 10799196), (18, 8999330), (20, 8099397), (30, 5399598), (36, 4499665), (45, 3599732), (60, 2699799), (61, 2655540), (90, 1799866), (122, 1327770), (180, 899933), (183, 885180), (244, 663885), (305, 531108), (366, 442590), (549, 295060), (610, 265554), (732, 221295), (915, 177036), (1098, 147530), (1220, 132777), (1830, 88518), (2196, 73765), (2745, 59012), (3660, 44259), (5490, 29506), (10980, 14753)]