28420560

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{5639}}^1$

素因数の和:5665

約数の個数: 120

約数和(自身を含む): 109100160

約数和(自身を除く): 80679600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 5639, 11278, 16917, 22556, 28195, 33834, 39473, 45112, 50751, 56390, 67668, 78946, 84585, 90224, 101502, 112780, 118419, 135336, 157892, 169170, 197365, 203004, 225560, 236838, 253755, 270672, 315784, 338340, 355257, 394730, 406008, 451120, 473676, 507510, 592095, 631568, 676680, 710514, 789460, 812016, 947352, 1015020, 1184190, 1353360, 1421028, 1578920, 1776285, 1894704, 2030040, 2368380, 2842056, 3157840, 3552570, 4060080, 4736760, 5684112, 7105140, 9473520, 14210280, 28420560]

約数ペア:

[(1, 28420560), (2, 14210280), (3, 9473520), (4, 7105140), (5, 5684112), (6, 4736760), (7, 4060080), (8, 3552570), (9, 3157840), (10, 2842056), (12, 2368380), (14, 2030040), (15, 1894704), (16, 1776285), (18, 1578920), (20, 1421028), (21, 1353360), (24, 1184190), (28, 1015020), (30, 947352), (35, 812016), (36, 789460), (40, 710514), (42, 676680), (45, 631568), (48, 592095), (56, 507510), (60, 473676), (63, 451120), (70, 406008), (72, 394730), (80, 355257), (84, 338340), (90, 315784), (105, 270672), (112, 253755), (120, 236838), (126, 225560), (140, 203004), (144, 197365), (168, 169170), (180, 157892), (210, 135336), (240, 118419), (252, 112780), (280, 101502), (315, 90224), (336, 84585), (360, 78946), (420, 67668), (504, 56390), (560, 50751), (630, 45112), (720, 39473), (840, 33834), (1008, 28195), (1260, 22556), (1680, 16917), (2520, 11278), (5040, 5639)]