28439892

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{907}}^1$

素因数の和:997

約数の個数: 72

約数和(自身を含む): 78661856

約数和(自身を除く): 50221964

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 67, 78, 117, 134, 156, 201, 234, 268, 402, 468, 603, 804, 871, 907, 1206, 1742, 1814, 2412, 2613, 2721, 3484, 3628, 5226, 5442, 7839, 8163, 10452, 10884, 11791, 15678, 16326, 23582, 31356, 32652, 35373, 47164, 60769, 70746, 106119, 121538, 141492, 182307, 212238, 243076, 364614, 424476, 546921, 729228, 789997, 1093842, 1579994, 2187684, 2369991, 3159988, 4739982, 7109973, 9479964, 14219946, 28439892]

約数ペア:

[(1, 28439892), (2, 14219946), (3, 9479964), (4, 7109973), (6, 4739982), (9, 3159988), (12, 2369991), (13, 2187684), (18, 1579994), (26, 1093842), (36, 789997), (39, 729228), (52, 546921), (67, 424476), (78, 364614), (117, 243076), (134, 212238), (156, 182307), (201, 141492), (234, 121538), (268, 106119), (402, 70746), (468, 60769), (603, 47164), (804, 35373), (871, 32652), (907, 31356), (1206, 23582), (1742, 16326), (1814, 15678), (2412, 11791), (2613, 10884), (2721, 10452), (3484, 8163), (3628, 7839), (5226, 5442)]