127740100

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:605

約数の個数: 72

約数和(自身を含む): 288884288

約数和(自身を除く): 161144188

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 61, 86, 100, 122, 172, 215, 244, 305, 430, 487, 610, 860, 974, 1075, 1220, 1525, 1948, 2150, 2435, 2623, 3050, 4300, 4870, 5246, 6100, 9740, 10492, 12175, 13115, 20941, 24350, 26230, 29707, 41882, 48700, 52460, 59414, 65575, 83764, 104705, 118828, 131150, 148535, 209410, 262300, 297070, 418820, 523525, 594140, 742675, 1047050, 1277401, 1485350, 2094100, 2554802, 2970700, 5109604, 6387005, 12774010, 25548020, 31935025, 63870050, 127740100]

約数ペア:

[(1, 127740100), (2, 63870050), (4, 31935025), (5, 25548020), (10, 12774010), (20, 6387005), (25, 5109604), (43, 2970700), (50, 2554802), (61, 2094100), (86, 1485350), (100, 1277401), (122, 1047050), (172, 742675), (215, 594140), (244, 523525), (305, 418820), (430, 297070), (487, 262300), (610, 209410), (860, 148535), (974, 131150), (1075, 118828), (1220, 104705), (1525, 83764), (1948, 65575), (2150, 59414), (2435, 52460), (2623, 48700), (3050, 41882), (4300, 29707), (4870, 26230), (5246, 24350), (6100, 20941), (9740, 13115), (10492, 12175)]