90243540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26387}}^1$

素因数の和:26421

約数の個数: 72

約数和(自身を含む): 288156960

約数和(自身を除く): 197913420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 26387, 52774, 79161, 105548, 131935, 158322, 237483, 263870, 316644, 395805, 474966, 501353, 527740, 791610, 949932, 1002706, 1187415, 1504059, 1583220, 2005412, 2374830, 2506765, 3008118, 4512177, 4749660, 5013530, 6016236, 7520295, 9024354, 10027060, 15040590, 18048708, 22560885, 30081180, 45121770, 90243540]

約数ペア:

[(1, 90243540), (2, 45121770), (3, 30081180), (4, 22560885), (5, 18048708), (6, 15040590), (9, 10027060), (10, 9024354), (12, 7520295), (15, 6016236), (18, 5013530), (19, 4749660), (20, 4512177), (30, 3008118), (36, 2506765), (38, 2374830), (45, 2005412), (57, 1583220), (60, 1504059), (76, 1187415), (90, 1002706), (95, 949932), (114, 791610), (171, 527740), (180, 501353), (190, 474966), (228, 395805), (285, 316644), (342, 263870), (380, 237483), (570, 158322), (684, 131935), (855, 105548), (1140, 79161), (1710, 52774), (3420, 26387)]