1221370178

素因数分解:

$2^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{727}}^1$

素因数の和:860

約数の個数: 64

約数和(自身を含む): 2236416000

約数和(自身を除く): 1015045822

約数列:

[1, 2, 7, 14, 31, 49, 62, 79, 98, 158, 217, 343, 434, 553, 686, 727, 1106, 1454, 1519, 2449, 3038, 3871, 4898, 5089, 7742, 10178, 10633, 17143, 21266, 22537, 27097, 34286, 35623, 45074, 54194, 57433, 71246, 114866, 120001, 157759, 240002, 249361, 315518, 402031, 498722, 804062, 840007, 1104313, 1680014, 1780423, 2208626, 2814217, 3560846, 5628434, 7730191, 12462961, 15460382, 19699519, 24925922, 39399038, 87240727, 174481454, 610685089, 1221370178]

約数ペア:

[(1, 1221370178), (2, 610685089), (7, 174481454), (14, 87240727), (31, 39399038), (49, 24925922), (62, 19699519), (79, 15460382), (98, 12462961), (158, 7730191), (217, 5628434), (343, 3560846), (434, 2814217), (553, 2208626), (686, 1780423), (727, 1680014), (1106, 1104313), (1454, 840007), (1519, 804062), (2449, 498722), (3038, 402031), (3871, 315518), (4898, 249361), (5089, 240002), (7742, 157759), (10178, 120001), (10633, 114866), (17143, 71246), (21266, 57433), (22537, 54194), (27097, 45074), (34286, 35623)]