209820650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{7507}}^1$

素因数の和:7575

約数の個数: 48

約数和(自身を含む): 430118304

約数和(自身を除く): 220297654

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 86, 130, 215, 325, 430, 559, 650, 1075, 1118, 2150, 2795, 5590, 7507, 13975, 15014, 27950, 37535, 75070, 97591, 187675, 195182, 322801, 375350, 487955, 645602, 975910, 1614005, 2439775, 3228010, 4196413, 4879550, 8070025, 8392826, 16140050, 20982065, 41964130, 104910325, 209820650]

約数ペア:

[(1, 209820650), (2, 104910325), (5, 41964130), (10, 20982065), (13, 16140050), (25, 8392826), (26, 8070025), (43, 4879550), (50, 4196413), (65, 3228010), (86, 2439775), (130, 1614005), (215, 975910), (325, 645602), (430, 487955), (559, 375350), (650, 322801), (1075, 195182), (1118, 187675), (2150, 97591), (2795, 75070), (5590, 37535), (7507, 27950), (13975, 15014)]