19180980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1171}}^1$

素因数の和:1206

約数の個数: 144

約数和(自身を含む): 71670144

約数和(自身を除く): 52489164

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1171, 1260, 1365, 1638, 1820, 2340, 2342, 2730, 3276, 3513, 4095, 4684, 5460, 5855, 7026, 8190, 8197, 10539, 11710, 14052, 15223, 16380, 16394, 17565, 21078, 23420, 24591, 30446, 32788, 35130, 40985, 42156, 45669, 49182, 52695, 60892, 70260, 73773, 76115, 81970, 91338, 98364, 105390, 106561, 122955, 137007, 147546, 152230, 163940, 182676, 210780, 213122, 228345, 245910, 274014, 295092, 304460, 319683, 368865, 426244, 456690, 491820, 532805, 548028, 639366, 685035, 737730, 913380, 959049, 1065610, 1278732, 1370070, 1475460, 1598415, 1918098, 2131220, 2740140, 3196830, 3836196, 4795245, 6393660, 9590490, 19180980]

約数ペア:

[(1, 19180980), (2, 9590490), (3, 6393660), (4, 4795245), (5, 3836196), (6, 3196830), (7, 2740140), (9, 2131220), (10, 1918098), (12, 1598415), (13, 1475460), (14, 1370070), (15, 1278732), (18, 1065610), (20, 959049), (21, 913380), (26, 737730), (28, 685035), (30, 639366), (35, 548028), (36, 532805), (39, 491820), (42, 456690), (45, 426244), (52, 368865), (60, 319683), (63, 304460), (65, 295092), (70, 274014), (78, 245910), (84, 228345), (90, 213122), (91, 210780), (105, 182676), (117, 163940), (126, 152230), (130, 147546), (140, 137007), (156, 122955), (180, 106561), (182, 105390), (195, 98364), (210, 91338), (234, 81970), (252, 76115), (260, 73773), (273, 70260), (315, 60892), (364, 52695), (390, 49182), (420, 45669), (455, 42156), (468, 40985), (546, 35130), (585, 32788), (630, 30446), (780, 24591), (819, 23420), (910, 21078), (1092, 17565), (1170, 16394), (1171, 16380), (1260, 15223), (1365, 14052), (1638, 11710), (1820, 10539), (2340, 8197), (2342, 8190), (2730, 7026), (3276, 5855), (3513, 5460), (4095, 4684)]