28121100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^2\times {\mathrm{1913}}^1$

素因数の和:1944

約数の個数: 108

約数和(自身を含む): 94697064

約数和(自身を除く): 66575964

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 49, 50, 60, 70, 75, 84, 98, 100, 105, 140, 147, 150, 175, 196, 210, 245, 294, 300, 350, 420, 490, 525, 588, 700, 735, 980, 1050, 1225, 1470, 1913, 2100, 2450, 2940, 3675, 3826, 4900, 5739, 7350, 7652, 9565, 11478, 13391, 14700, 19130, 22956, 26782, 28695, 38260, 40173, 47825, 53564, 57390, 66955, 80346, 93737, 95650, 114780, 133910, 143475, 160692, 187474, 191300, 200865, 267820, 281211, 286950, 334775, 374948, 401730, 468685, 562422, 573900, 669550, 803460, 937370, 1004325, 1124844, 1339100, 1406055, 1874740, 2008650, 2343425, 2812110, 4017300, 4686850, 5624220, 7030275, 9373700, 14060550, 28121100]

約数ペア:

[(1, 28121100), (2, 14060550), (3, 9373700), (4, 7030275), (5, 5624220), (6, 4686850), (7, 4017300), (10, 2812110), (12, 2343425), (14, 2008650), (15, 1874740), (20, 1406055), (21, 1339100), (25, 1124844), (28, 1004325), (30, 937370), (35, 803460), (42, 669550), (49, 573900), (50, 562422), (60, 468685), (70, 401730), (75, 374948), (84, 334775), (98, 286950), (100, 281211), (105, 267820), (140, 200865), (147, 191300), (150, 187474), (175, 160692), (196, 143475), (210, 133910), (245, 114780), (294, 95650), (300, 93737), (350, 80346), (420, 66955), (490, 57390), (525, 53564), (588, 47825), (700, 40173), (735, 38260), (980, 28695), (1050, 26782), (1225, 22956), (1470, 19130), (1913, 14700), (2100, 13391), (2450, 11478), (2940, 9565), (3675, 7652), (3826, 7350), (4900, 5739)]