20121199664

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{417383}}^1$

素因数の和:417545

約数の個数: 40

約数和(自身を含む): 40990447872

約数和(自身を除く): 20869248208

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 131, 184, 262, 368, 524, 1048, 2096, 3013, 6026, 12052, 24104, 48208, 417383, 834766, 1669532, 3339064, 6678128, 9599809, 19199618, 38399236, 54677173, 76798472, 109354346, 153596944, 218708692, 437417384, 874834768, 1257574979, 2515149958, 5030299916, 10060599832, 20121199664]

約数ペア:

[(1, 20121199664), (2, 10060599832), (4, 5030299916), (8, 2515149958), (16, 1257574979), (23, 874834768), (46, 437417384), (92, 218708692), (131, 153596944), (184, 109354346), (262, 76798472), (368, 54677173), (524, 38399236), (1048, 19199618), (2096, 9599809), (3013, 6678128), (6026, 3339064), (12052, 1669532), (24104, 834766), (48208, 417383)]