2887740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:339

約数の個数: 72

約数和(自身を含む): 8936928

約数和(自身を除く): 6049188

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, 263, 305, 366, 526, 549, 610, 732, 789, 915, 1052, 1098, 1220, 1315, 1578, 1830, 2196, 2367, 2630, 2745, 3156, 3660, 3945, 4734, 5260, 5490, 7890, 9468, 10980, 11835, 15780, 16043, 23670, 32086, 47340, 48129, 64172, 80215, 96258, 144387, 160430, 192516, 240645, 288774, 320860, 481290, 577548, 721935, 962580, 1443870, 2887740]

約数ペア:

[(1, 2887740), (2, 1443870), (3, 962580), (4, 721935), (5, 577548), (6, 481290), (9, 320860), (10, 288774), (12, 240645), (15, 192516), (18, 160430), (20, 144387), (30, 96258), (36, 80215), (45, 64172), (60, 48129), (61, 47340), (90, 32086), (122, 23670), (180, 16043), (183, 15780), (244, 11835), (263, 10980), (305, 9468), (366, 7890), (526, 5490), (549, 5260), (610, 4734), (732, 3945), (789, 3660), (915, 3156), (1052, 2745), (1098, 2630), (1220, 2367), (1315, 2196), (1578, 1830)]