31389540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5749}}^1$

素因数の和:5781

約数の個数: 96

約数和(自身を含む): 108192000

約数和(自身を除く): 76802460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 5749, 11498, 17247, 22996, 28745, 34494, 40243, 57490, 68988, 74737, 80486, 86235, 114980, 120729, 149474, 160972, 172470, 201215, 224211, 241458, 298948, 344940, 373685, 402430, 448422, 482916, 523159, 603645, 747370, 804860, 896844, 1046318, 1121055, 1207290, 1494740, 1569477, 2092636, 2242110, 2414580, 2615795, 3138954, 4484220, 5231590, 6277908, 7847385, 10463180, 15694770, 31389540]

約数ペア:

[(1, 31389540), (2, 15694770), (3, 10463180), (4, 7847385), (5, 6277908), (6, 5231590), (7, 4484220), (10, 3138954), (12, 2615795), (13, 2414580), (14, 2242110), (15, 2092636), (20, 1569477), (21, 1494740), (26, 1207290), (28, 1121055), (30, 1046318), (35, 896844), (39, 804860), (42, 747370), (52, 603645), (60, 523159), (65, 482916), (70, 448422), (78, 402430), (84, 373685), (91, 344940), (105, 298948), (130, 241458), (140, 224211), (156, 201215), (182, 172470), (195, 160972), (210, 149474), (260, 120729), (273, 114980), (364, 86235), (390, 80486), (420, 74737), (455, 68988), (546, 57490), (780, 40243), (910, 34494), (1092, 28745), (1365, 22996), (1820, 17247), (2730, 11498), (5460, 5749)]