20901900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{193}}^1$

素因数の和:248

約数の個数: 108

約数和(自身を含む): 64157352

約数和(自身を除く): 43255452

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 25, 30, 38, 50, 57, 60, 75, 76, 95, 100, 114, 150, 190, 193, 228, 285, 300, 361, 380, 386, 475, 570, 579, 722, 772, 950, 965, 1083, 1140, 1158, 1425, 1444, 1805, 1900, 1930, 2166, 2316, 2850, 2895, 3610, 3667, 3860, 4332, 4825, 5415, 5700, 5790, 7220, 7334, 9025, 9650, 10830, 11001, 11580, 14475, 14668, 18050, 18335, 19300, 21660, 22002, 27075, 28950, 36100, 36670, 44004, 54150, 55005, 57900, 69673, 73340, 91675, 108300, 110010, 139346, 183350, 209019, 220020, 275025, 278692, 348365, 366700, 418038, 550050, 696730, 836076, 1045095, 1100100, 1393460, 1741825, 2090190, 3483650, 4180380, 5225475, 6967300, 10450950, 20901900]

約数ペア:

[(1, 20901900), (2, 10450950), (3, 6967300), (4, 5225475), (5, 4180380), (6, 3483650), (10, 2090190), (12, 1741825), (15, 1393460), (19, 1100100), (20, 1045095), (25, 836076), (30, 696730), (38, 550050), (50, 418038), (57, 366700), (60, 348365), (75, 278692), (76, 275025), (95, 220020), (100, 209019), (114, 183350), (150, 139346), (190, 110010), (193, 108300), (228, 91675), (285, 73340), (300, 69673), (361, 57900), (380, 55005), (386, 54150), (475, 44004), (570, 36670), (579, 36100), (722, 28950), (772, 27075), (950, 22002), (965, 21660), (1083, 19300), (1140, 18335), (1158, 18050), (1425, 14668), (1444, 14475), (1805, 11580), (1900, 11001), (1930, 10830), (2166, 9650), (2316, 9025), (2850, 7334), (2895, 7220), (3610, 5790), (3667, 5700), (3860, 5415), (4332, 4825)]