281805890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 547430400

約数和(自身を除く): 265624510

約数列:

[1, 2, 5, 10, 23, 46, 47, 94, 115, 131, 199, 230, 235, 262, 398, 470, 655, 995, 1081, 1310, 1990, 2162, 3013, 4577, 5405, 6026, 6157, 9154, 9353, 10810, 12314, 15065, 18706, 22885, 26069, 30130, 30785, 45770, 46765, 52138, 61570, 93530, 130345, 141611, 215119, 260690, 283222, 430238, 599587, 708055, 1075595, 1199174, 1225243, 1416110, 2151190, 2450486, 2997935, 5995870, 6126215, 12252430, 28180589, 56361178, 140902945, 281805890]

約数ペア:

[(1, 281805890), (2, 140902945), (5, 56361178), (10, 28180589), (23, 12252430), (46, 6126215), (47, 5995870), (94, 2997935), (115, 2450486), (131, 2151190), (199, 1416110), (230, 1225243), (235, 1199174), (262, 1075595), (398, 708055), (470, 599587), (655, 430238), (995, 283222), (1081, 260690), (1310, 215119), (1990, 141611), (2162, 130345), (3013, 93530), (4577, 61570), (5405, 52138), (6026, 46765), (6157, 45770), (9154, 30785), (9353, 30130), (10810, 26069), (12314, 22885), (15065, 18706)]