215173840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{6299}}^1$

素因数の和:6380

約数の個数: 80

約数和(自身を含む): 581212800

約数和(自身を除く): 366038960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 427, 488, 560, 610, 854, 976, 1220, 1708, 2135, 2440, 3416, 4270, 4880, 6299, 6832, 8540, 12598, 17080, 25196, 31495, 34160, 44093, 50392, 62990, 88186, 100784, 125980, 176372, 220465, 251960, 352744, 384239, 440930, 503920, 705488, 768478, 881860, 1536956, 1763720, 1921195, 2689673, 3073912, 3527440, 3842390, 5379346, 6147824, 7684780, 10758692, 13448365, 15369560, 21517384, 26896730, 30739120, 43034768, 53793460, 107586920, 215173840]

約数ペア:

[(1, 215173840), (2, 107586920), (4, 53793460), (5, 43034768), (7, 30739120), (8, 26896730), (10, 21517384), (14, 15369560), (16, 13448365), (20, 10758692), (28, 7684780), (35, 6147824), (40, 5379346), (56, 3842390), (61, 3527440), (70, 3073912), (80, 2689673), (112, 1921195), (122, 1763720), (140, 1536956), (244, 881860), (280, 768478), (305, 705488), (427, 503920), (488, 440930), (560, 384239), (610, 352744), (854, 251960), (976, 220465), (1220, 176372), (1708, 125980), (2135, 100784), (2440, 88186), (3416, 62990), (4270, 50392), (4880, 44093), (6299, 34160), (6832, 31495), (8540, 25196), (12598, 17080)]