221452020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{167}}^1$

素因数の和:374

約数の個数: 144

約数和(自身を含む): 693463680

約数和(自身を除く): 472011660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 139, 159, 167, 180, 212, 265, 278, 318, 334, 417, 477, 501, 530, 556, 636, 668, 695, 795, 834, 835, 954, 1002, 1060, 1251, 1390, 1503, 1590, 1668, 1670, 1908, 2004, 2085, 2385, 2502, 2505, 2780, 3006, 3180, 3340, 4170, 4770, 5004, 5010, 6012, 6255, 7367, 7515, 8340, 8851, 9540, 10020, 12510, 14734, 15030, 17702, 22101, 23213, 25020, 26553, 29468, 30060, 35404, 36835, 44202, 44255, 46426, 53106, 66303, 69639, 73670, 79659, 88404, 88510, 92852, 106212, 110505, 116065, 132606, 132765, 139278, 147340, 159318, 177020, 208917, 221010, 232130, 265212, 265530, 278556, 318636, 331515, 348195, 398295, 417834, 442020, 464260, 531060, 663030, 696390, 796590, 835668, 1044585, 1230289, 1326060, 1392780, 1593180, 2089170, 2460578, 3690867, 4178340, 4921156, 6151445, 7381734, 11072601, 12302890, 14763468, 18454335, 22145202, 24605780, 36908670, 44290404, 55363005, 73817340, 110726010, 221452020]

約数ペア:

[(1, 221452020), (2, 110726010), (3, 73817340), (4, 55363005), (5, 44290404), (6, 36908670), (9, 24605780), (10, 22145202), (12, 18454335), (15, 14763468), (18, 12302890), (20, 11072601), (30, 7381734), (36, 6151445), (45, 4921156), (53, 4178340), (60, 3690867), (90, 2460578), (106, 2089170), (139, 1593180), (159, 1392780), (167, 1326060), (180, 1230289), (212, 1044585), (265, 835668), (278, 796590), (318, 696390), (334, 663030), (417, 531060), (477, 464260), (501, 442020), (530, 417834), (556, 398295), (636, 348195), (668, 331515), (695, 318636), (795, 278556), (834, 265530), (835, 265212), (954, 232130), (1002, 221010), (1060, 208917), (1251, 177020), (1390, 159318), (1503, 147340), (1590, 139278), (1668, 132765), (1670, 132606), (1908, 116065), (2004, 110505), (2085, 106212), (2385, 92852), (2502, 88510), (2505, 88404), (2780, 79659), (3006, 73670), (3180, 69639), (3340, 66303), (4170, 53106), (4770, 46426), (5004, 44255), (5010, 44202), (6012, 36835), (6255, 35404), (7367, 30060), (7515, 29468), (8340, 26553), (8851, 25020), (9540, 23213), (10020, 22101), (12510, 17702), (14734, 15030)]