421560320

素因数分解:

$2^{15}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:149

約数の個数: 128

約数和(自身を含む): 1056948480

約数和(自身を除く): 635388160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 83, 124, 128, 155, 160, 166, 248, 256, 310, 320, 332, 415, 496, 512, 620, 640, 664, 830, 992, 1024, 1240, 1280, 1328, 1660, 1984, 2048, 2480, 2560, 2573, 2656, 3320, 3968, 4096, 4960, 5120, 5146, 5312, 6640, 7936, 8192, 9920, 10240, 10292, 10624, 12865, 13280, 15872, 16384, 19840, 20480, 20584, 21248, 25730, 26560, 31744, 32768, 39680, 40960, 41168, 42496, 51460, 53120, 63488, 79360, 81920, 82336, 84992, 102920, 106240, 126976, 158720, 163840, 164672, 169984, 205840, 212480, 253952, 317440, 329344, 339968, 411680, 424960, 507904, 634880, 658688, 679936, 823360, 849920, 1015808, 1269760, 1317376, 1359872, 1646720, 1699840, 2539520, 2634752, 2719744, 3293440, 3399680, 5079040, 5269504, 6586880, 6799360, 10539008, 13173760, 13598720, 21078016, 26347520, 42156032, 52695040, 84312064, 105390080, 210780160, 421560320]

約数ペア:

[(1, 421560320), (2, 210780160), (4, 105390080), (5, 84312064), (8, 52695040), (10, 42156032), (16, 26347520), (20, 21078016), (31, 13598720), (32, 13173760), (40, 10539008), (62, 6799360), (64, 6586880), (80, 5269504), (83, 5079040), (124, 3399680), (128, 3293440), (155, 2719744), (160, 2634752), (166, 2539520), (248, 1699840), (256, 1646720), (310, 1359872), (320, 1317376), (332, 1269760), (415, 1015808), (496, 849920), (512, 823360), (620, 679936), (640, 658688), (664, 634880), (830, 507904), (992, 424960), (1024, 411680), (1240, 339968), (1280, 329344), (1328, 317440), (1660, 253952), (1984, 212480), (2048, 205840), (2480, 169984), (2560, 164672), (2573, 163840), (2656, 158720), (3320, 126976), (3968, 106240), (4096, 102920), (4960, 84992), (5120, 82336), (5146, 81920), (5312, 79360), (6640, 63488), (7936, 53120), (8192, 51460), (9920, 42496), (10240, 41168), (10292, 40960), (10624, 39680), (12865, 32768), (13280, 31744), (15872, 26560), (16384, 25730), (19840, 21248), (20480, 20584)]