201049220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1\times {\mathrm{631}}^1$

素因数の和:908

約数の個数: 48

約数和(自身を含む): 430012800

約数和(自身を除く): 228963580

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 179, 356, 358, 445, 631, 716, 890, 895, 1262, 1780, 1790, 2524, 3155, 3580, 6310, 12620, 15931, 31862, 56159, 63724, 79655, 112318, 112949, 159310, 224636, 225898, 280795, 318620, 451796, 561590, 564745, 1123180, 1129490, 2258980, 10052461, 20104922, 40209844, 50262305, 100524610, 201049220]

約数ペア:

[(1, 201049220), (2, 100524610), (4, 50262305), (5, 40209844), (10, 20104922), (20, 10052461), (89, 2258980), (178, 1129490), (179, 1123180), (356, 564745), (358, 561590), (445, 451796), (631, 318620), (716, 280795), (890, 225898), (895, 224636), (1262, 159310), (1780, 112949), (1790, 112318), (2524, 79655), (3155, 63724), (3580, 56159), (6310, 31862), (12620, 15931)]