289388720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{116689}}^1$

素因数の和:116733

約数の個数: 40

約数和(自身を含む): 694538880

約数和(自身を除く): 405150160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 116689, 233378, 466756, 583445, 933512, 1166890, 1867024, 2333780, 3617359, 4667560, 7234718, 9335120, 14469436, 18086795, 28938872, 36173590, 57877744, 72347180, 144694360, 289388720]

約数ペア:

[(1, 289388720), (2, 144694360), (4, 72347180), (5, 57877744), (8, 36173590), (10, 28938872), (16, 18086795), (20, 14469436), (31, 9335120), (40, 7234718), (62, 4667560), (80, 3617359), (124, 2333780), (155, 1867024), (248, 1166890), (310, 933512), (496, 583445), (620, 466756), (1240, 233378), (2480, 116689)]