208540020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{15727}}^1$

素因数の和:15769

約数の個数: 96

約数和(自身を含む): 665860608

約数和(自身を除く): 457320588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 130, 156, 170, 195, 204, 221, 255, 260, 340, 390, 442, 510, 663, 780, 884, 1020, 1105, 1326, 2210, 2652, 3315, 4420, 6630, 13260, 15727, 31454, 47181, 62908, 78635, 94362, 157270, 188724, 204451, 235905, 267359, 314540, 408902, 471810, 534718, 613353, 802077, 817804, 943620, 1022255, 1069436, 1226706, 1336795, 1604154, 2044510, 2453412, 2673590, 3066765, 3208308, 3475667, 4010385, 4089020, 5347180, 6133530, 6951334, 8020770, 10427001, 12267060, 13902668, 16041540, 17378335, 20854002, 34756670, 41708004, 52135005, 69513340, 104270010, 208540020]

約数ペア:

[(1, 208540020), (2, 104270010), (3, 69513340), (4, 52135005), (5, 41708004), (6, 34756670), (10, 20854002), (12, 17378335), (13, 16041540), (15, 13902668), (17, 12267060), (20, 10427001), (26, 8020770), (30, 6951334), (34, 6133530), (39, 5347180), (51, 4089020), (52, 4010385), (60, 3475667), (65, 3208308), (68, 3066765), (78, 2673590), (85, 2453412), (102, 2044510), (130, 1604154), (156, 1336795), (170, 1226706), (195, 1069436), (204, 1022255), (221, 943620), (255, 817804), (260, 802077), (340, 613353), (390, 534718), (442, 471810), (510, 408902), (663, 314540), (780, 267359), (884, 235905), (1020, 204451), (1105, 188724), (1326, 157270), (2210, 94362), (2652, 78635), (3315, 62908), (4420, 47181), (6630, 31454), (13260, 15727)]