1388331340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{1033}}^1$

素因数の和:1243

約数の個数: 96

約数和(自身を含む): 3283156800

約数和(自身を除く): 1894825460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 149, 164, 205, 220, 298, 410, 451, 596, 745, 820, 902, 1033, 1490, 1639, 1804, 2066, 2255, 2980, 3278, 4132, 4510, 5165, 6109, 6556, 8195, 9020, 10330, 11363, 12218, 16390, 20660, 22726, 24436, 30545, 32780, 42353, 45452, 56815, 61090, 67199, 84706, 113630, 122180, 134398, 153917, 169412, 211765, 227260, 268796, 307834, 335995, 423530, 465883, 615668, 671990, 769585, 847060, 931766, 1343980, 1539170, 1693087, 1863532, 2329415, 3078340, 3386174, 4658830, 6310597, 6772348, 8465435, 9317660, 12621194, 16930870, 25242388, 31552985, 33861740, 63105970, 69416567, 126211940, 138833134, 277666268, 347082835, 694165670, 1388331340]

約数ペア:

[(1, 1388331340), (2, 694165670), (4, 347082835), (5, 277666268), (10, 138833134), (11, 126211940), (20, 69416567), (22, 63105970), (41, 33861740), (44, 31552985), (55, 25242388), (82, 16930870), (110, 12621194), (149, 9317660), (164, 8465435), (205, 6772348), (220, 6310597), (298, 4658830), (410, 3386174), (451, 3078340), (596, 2329415), (745, 1863532), (820, 1693087), (902, 1539170), (1033, 1343980), (1490, 931766), (1639, 847060), (1804, 769585), (2066, 671990), (2255, 615668), (2980, 465883), (3278, 423530), (4132, 335995), (4510, 307834), (5165, 268796), (6109, 227260), (6556, 211765), (8195, 169412), (9020, 153917), (10330, 134398), (11363, 122180), (12218, 113630), (16390, 84706), (20660, 67199), (22726, 61090), (24436, 56815), (30545, 45452), (32780, 42353)]