161973420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1489}}^1$

素因数の和:1552

約数の個数: 144

約数和(自身を含む): 542193120

約数和(自身を除く): 380219700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 49, 60, 70, 74, 84, 98, 105, 111, 140, 147, 148, 185, 196, 210, 222, 245, 259, 294, 370, 420, 444, 490, 518, 555, 588, 735, 740, 777, 980, 1036, 1110, 1295, 1470, 1489, 1554, 1813, 2220, 2590, 2940, 2978, 3108, 3626, 3885, 4467, 5180, 5439, 5956, 7252, 7445, 7770, 8934, 9065, 10423, 10878, 14890, 15540, 17868, 18130, 20846, 21756, 22335, 27195, 29780, 31269, 36260, 41692, 44670, 52115, 54390, 55093, 62538, 72961, 89340, 104230, 108780, 110186, 125076, 145922, 156345, 165279, 208460, 218883, 220372, 275465, 291844, 312690, 330558, 364805, 385651, 437766, 550930, 625380, 661116, 729610, 771302, 826395, 875532, 1094415, 1101860, 1156953, 1459220, 1542604, 1652790, 1928255, 2188830, 2313906, 2699557, 3305580, 3856510, 4377660, 4627812, 5399114, 5784765, 7713020, 8098671, 10798228, 11569530, 13497785, 16197342, 23139060, 26995570, 32394684, 40493355, 53991140, 80986710, 161973420]

約数ペア:

[(1, 161973420), (2, 80986710), (3, 53991140), (4, 40493355), (5, 32394684), (6, 26995570), (7, 23139060), (10, 16197342), (12, 13497785), (14, 11569530), (15, 10798228), (20, 8098671), (21, 7713020), (28, 5784765), (30, 5399114), (35, 4627812), (37, 4377660), (42, 3856510), (49, 3305580), (60, 2699557), (70, 2313906), (74, 2188830), (84, 1928255), (98, 1652790), (105, 1542604), (111, 1459220), (140, 1156953), (147, 1101860), (148, 1094415), (185, 875532), (196, 826395), (210, 771302), (222, 729610), (245, 661116), (259, 625380), (294, 550930), (370, 437766), (420, 385651), (444, 364805), (490, 330558), (518, 312690), (555, 291844), (588, 275465), (735, 220372), (740, 218883), (777, 208460), (980, 165279), (1036, 156345), (1110, 145922), (1295, 125076), (1470, 110186), (1489, 108780), (1554, 104230), (1813, 89340), (2220, 72961), (2590, 62538), (2940, 55093), (2978, 54390), (3108, 52115), (3626, 44670), (3885, 41692), (4467, 36260), (5180, 31269), (5439, 29780), (5956, 27195), (7252, 22335), (7445, 21756), (7770, 20846), (8934, 18130), (9065, 17868), (10423, 15540), (10878, 14890)]